IMAX CORPORATION

Exhibit 99.1

IMAX CORPORATION

2525 Speakman Drive

Mississauga, Ontario, Canada L5K 1B1

Tel: (905) 403-6500 Fax: (905) 403-6450

www.imax.com

IMAX CORPORATION REPORTS THIRD QUARTER 2013 FINANCIAL RESULTS

HIGHLIGHTS

NEW YORK, NY – Oct. 24, 2013 – IMAX Corporation (NYSE:IMAX; TSX:IMX) today reported third quarter 2013 revenues of $51.7 million, adjusted EBITDA as calculated in accordance with the Company’s credit facility of $14.8 million, adjusted net income of $4.4 million, or $0.06 per diluted share, and reported net income of $1.6 million, or $0.02 per diluted share.

“We continued to make significant progress this quarter toward our key strategic initiatives, including strong signings, controlling SG&A and continued advancements on differentiation,” stated Richard L. Gelfond, IMAX Chief Executive Officer. “Looking ahead, our great start to Q4, including IMAX’s strong performance on Gravity and Stalingrad, reminds us of the importance of assessing our portfolio of films on an annual basis, which we believe is a relatively predictable driver of box office performance over the long-term.”

Network Growth Update

The total IMAX® theatre network consisted of 785 systems as of September 30, 2013, of which 653 were in commercial multiplexes. There were 356 theatre systems in backlog as of September 30, 2013, compared to 285 theatre systems in backlog as of September 30, 2012. IMAX has signed contracts for 158 theatres year-to-date, already surpassing the 142 signings for all of 2012. Neither the backlog number, nor the YTD signings, include the 80 additional theatres still optional under the Wanda contract. For a breakdown of theatre system signings, installations, network and backlog by type, please see the end of this press release.

In the third quarter of 2013, the Company signed contracts for 99 theatre systems, of which 88 were in new theatre locations and 11 were a combination of signings for laser systems and upgrades of certain of the Company’s film theatres to digital systems in existing theatre locations. In the quarter, the Company installed 28 theatre systems, of which 19 were in new theatre locations.

“Strong third quarter signings, historic high backlog and many fourth quarter deals either signed or in discussions, provide increased visibility into strong network growth over the long-term,” Gelfond continued, “This unit growth, along with our ongoing focus on controlling costs and optimizing our film portfolio, give us confidence in our operating leverage and cash flow potential for the long-term.”

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Third-Quarter Segment Results

Conference Call

The Company will host a conference call today at 8:30 AM ET to discuss its third quarter 2013 financial results. To access the call via telephone, interested parties should dial (800) 711-9538 approximately 5 to 10 minutes before it begins. International callers should dial (416) 640-5925. The participant passcode for the call is 1695965. This call is also being webcast by Thomson Financial and can be accessed on the ‘Investor Relations’ section of www.imax.com. A replay of the call will be available via webcast on the ‘Investor Relations’ section of www.imax.com or via telephone by dialing (888) 203-1112 (US and Canada) or (647) 436-0148 (international). The Conference ID for the telephone replay is 1695965.

About IMAX Corporation

IMAX, an innovator in entertainment technology, combines proprietary software, architecture and equipment to create experiences that take you beyond the edge of your seat to a world you’ve never imagined. Top filmmakers and studios are utilizing IMAX theatres to connect with audiences in extraordinary ways, and, as such, IMAX’s network is among the most important and successful theatrical distribution platforms for major event films around the globe.

IMAX is headquartered in New York, Toronto and Los Angeles, with offices in London, Tokyo, Shanghai and Beijing. As of September 30, 2013, there were 785 IMAX theatres (653 commercial multiplexes, 19 commercial destinations and 113 institutions) in 55 countries.

IMAX®, IMAX® 3D, IMAX DMR®, Experience It In IMAX®, An IMAX 3D Experience®, The IMAX Experience®, IMAX Is Believing® and IMAX nXos® are trademarks of IMAX Corporation. More information about the Company can be found at www.imax.com. You may also connect with IMAX on Facebook (www.facebook.com/imax), Twitter (www.twitter.com/imax) and YouTube (www.youtube.com/imaxmovies).

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This press release contains forward looking statements that are based on IMAX management’s assumptions and existing information and involve certain risks and uncertainties which could cause actual results to differ materially from future results expressed or implied by such forward looking statements. Important factors that could affect these statements include, but are not limited to, general economic, market or business conditions; the opportunities (or lack thereof) that may be presented to and pursued by the Company; the performance of IMAX DMR films; competitive actions by other companies; conditions in the in-home and out-of-home entertainment industries; the signing of theater system agreements; changes in laws or regulations; conditions, changes and developments in the commercial exhibition industry; the failure to convert theater system backlog into revenue; risks associated with investments and operations in foreign jurisdictions and any future international expansion, including those related to economic, political and regulatory policies of local governments and laws and policies of the United States and Canada; risks related to the Company’s growth and operations in China; the failure to respond to change and advancements in digital technology; risks related to the acquisition of AMC Entertainment Holdings, Inc. by Dalian Wanda Group Co., Ltd.; risks related to new business initiatives; the potential impact of increased competition in the markets within

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which the Company operates; risks related to the Company’s inability to protect the Company’s intellectual property; risks related to Eastman Kodak bankruptcy and the possibility of constrained film supply; risks related to the Company’s implementation of a new enterprise resource planning system; risks related to the Company’s prior restatements and the related litigation; and other factors, many of which are beyond the control of the Company. These factors, other risks and uncertainties and financial details are discussed in IMAX’s most recent Annual Report on Form 10-K and Quarterly Reports on Form 10-Q.

For additional information please contact:

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Additional Information

Signings and Installations

Sep. 30, 2013

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Additional Information (continued)

2013 DMR Films Announced to Date:

To date, IMAX has announced 37 titles to be released in 2013. The Company released 35 titles in 2012. The Company remains in discussions with virtually every major studio regarding future titles and expects the total number of titles in 2013 to be similar to that in 2012.

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IMAX CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

In accordance with United States Generally Accepted Accounting Principles

(In thousands of U.S. dollars, except per share amounts)

(Unaudited)

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IMAX CORPORATION

CONDENSED CONSOLIDATED BALANCE SHEETS

In accordance with United States Generally Accepted Accounting Principles

(in thousands of U.S. dollars)

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IMAX CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

In accordance with United States Generally Accepted Accounting Principles

(In thousands of U.S. dollars)

(Unaudited)

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IMAX CORPORATION

SELECTED FINANCIAL DATA

In accordance with United States Generally Accepted Accounting Principles

(in thousands of U.S. dollars)

The Company has seven reportable segments identified by category of product sold or service provided: IMAX systems; theater system maintenance; joint revenue sharing arrangements; film production and IMAX DMR; film distribution; film post-production; and other. The IMAX systems segment is comprised of the design, manufacture, sale or lease IMAX theater projection system equipment. The theater system maintenance segment consists of the maintenance of IMAX theater projection system equipment in the IMAX theater network. The joint revenue sharing arrangements segment is comprised of the installation IMAX theater projection system equipment to an exhibitor in exchange for a certain percentage of box-office receipts, concession revenue and in some cases a small upfront or initial payment. The film production and IMAX DMR segment is comprised of the production of films and performance of film re-mastering services. The film distribution segment includes the distribution of films for which the Company has distribution rights. The film post-production segment includes the provision of film post-production and film print services. The other segment includes certain IMAX theaters that the Company owns and operates, camera rentals and other miscellaneous items.

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IMAX CORPORATION

OTHER INFORMATION

(in thousands of U.S. dollars)

Non-GAAP Financial Measures:

In this release, the Company presents adjusted EBITDA, adjusted net income and adjusted net income per diluted share as supplemental measures of performance of the Company, which are not recognized under United States generally accepted accounting principles (“GAAP”). The Company presents adjusted EBITDA, adjusted net income and adjusted net income per diluted share because it believes that they are important supplemental measures of its comparable controllable operating performance and it wants to ensure that its investors fully understand the impact of its variable share-based compensation, provision for arbitration award and deferred taxes on its net income. Management uses these measures to review operating performance on a comparable basis from period to period. However, these non-GAAP measures may not be comparable to similarly titled amounts reported by other companies. Adjusted EBITDA, adjusted net income and adjusted net income per diluted share should be considered in addition to, and not as a substitute for, net income and other measures of financial performance reported in accordance with GAAP.

Adjusted EBITDA is calculated on a basis consistent with the Company’s Credit Facility, which refers to Adjusted EBITDA as EBITDA. The Credit Facility provides that the Company will be required to maintain a Fixed Charge Coverage Ratio (as defined in the Credit Agreement) of not less than 1.1:1. The Company will also be required to maintain minimum EBITDA (as defined in the Credit Agreement) of $70.0 million between closing and September 30, 2013, which requirement increases to $80.0 million on December 31, 2013, $90.0 million on December 31, 2014, and $100.0 million on December 31, 2015. The Company must also maintain a Maximum Total Leverage Ratio (as defined in the Credit Agreement) of 2.5:1 between closing and September 30, 2013, which requirement decreases to (i) 2.25:1 on December 31, 2013; (ii) 2.00:1 on December 31, 2014; and (iii) 1.75:1 on December 31, 2015. The ratio of total debt to EBITDA was 0.06:1 as at September 30, 2013, where Total Debt (as defined in the Credit Agreement) is the sum of all obligations evidenced by notes, bonds, debentures or similar instruments and was $5.0 million. EBITDA is calculated as follows:

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IMAX CORPORATION

OTHER INFORMATION

(in thousands of U.S. dollars)

Adjusted Net Income and Adjusted Diluted Per Share Calculations – Quarter Ended September 30, 2013 vs. 2012:

The Company reported net income of $1.6 million or $0.02 per basic and diluted share for the third quarter of 2013, as compared to net income of $14.9 million or $0.23 per basic share and $0.22 per diluted share for the third quarter of 2012. The quarter ended September 30, 2012 included the exceptional performance of The Dark Knight Rises: The IMAX Experience. Net income for the third quarter of 2013 includes a $2.8 million charge, or $0.04 per diluted share, for stock-based compensation (2012 — $2.8 million or $0.04 per diluted share). Adjusted net income, which consists of net income excluding stock-based compensation expense and the related tax impact, was $4.4 million, or $0.06 per diluted share, in the third quarter of 2013, as compared to adjusted net income of $17.8 million, or $0.26 per diluted share, for the third quarter of 2012. A reconciliation of net income, the most directly comparable U.S. GAAP measure, to adjusted net income and adjusted net income per diluted share is presented in the table below:

Adjusted Net Income and Adjusted Diluted Per Share Calculations – Nine Months Ended September 30, 2013 vs. 2012:

The Company reported net income of $16.3 million or $0.24 per basic and diluted share for the nine months ended September 30, 2013, as compared to net income of $28.5 million or $0.43 per basic and $0.42 per diluted share for the nine months ended September 30, 2012. Net income for the nine months ended September 30, 2013 includes a $8.8 million charge, or $0.12 per diluted share, for stock-based compensation (2012 — $10.3 million or $0.15 per diluted share). Adjusted net income, which consists of net income excluding stock-based compensation expense and the related tax expense, was $24.9 million, or $0.36 per diluted share, in the nine months ended September 30, 2013, as compared to adjusted net income of $38.6 million, or $0.57 per diluted share, for the nine months ended September 30, 2012. A reconciliation of net income, the most directly comparable U.S. GAAP measure, to adjusted net income and adjusted net income per diluted share is presented in the table below:

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Free Cash Flow:

Free cash flow is defined as cash provided by operating activities minus cash used in investing activities (from the consolidated statements of cash flows). Cash provided by operating activities consist of net income, plus depreciation and amortization, plus the change in deferred income taxes, plus other non-cash items, plus changes in working capital, less investment in film assets, plus other changes in operating assets and liabilities. Cash used in investing activities includes capital expenditures, acquisitions and other cash used in investing activities. Management views free cash flow, a non-GAAP measure, as a measure of the Company’s after-tax cash flow available to reduce debt, add to cash balances, and fund other financing activities. A reconciliation of cash provided by operating activities to free cash flow is presented in the table below:

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