Showest 2008, Las Vegas, March 10, 2008 - THX Ltd. and Cinemark Holdings, Inc today announced that Cinemark Theatres will add more than 200 THX Certified screens domestically, bringing the total number of Cinemark screens with THX certification to more than 500. Cinemark will be rolling out the THX certification program in major metropolitan areas across the United States, including Los Angeles, San Francisco and Denver.

"Cinemark and THX share a common vision of driving advancements in film exhibition. THX has a strong association with great movie experiences, and is instantly recognized by movie audiences around the world for sound and image excellence," said Tim Warner, President of Cinemark Holdings. "By extending THX certification to more than 500 of our theatres, it further communicates our commitment to delivering the best movie-going experience to our customers."

THX Certified cinemas are precisely engineered to meet THX requirements for sound and visual quality, focusing on surround sound and acoustic performance and projection technology. THX gets involved early in the design process, working with cinema architects and builders to ensure sound effects, music and dialogue can be accurately distributed throughout the cinema auditorium, and background noise from other cinemas, parking lots and lobby concessions do not distract from the feature presentation.

"With nearly 25 years of experience in cinema design and certification, THX has mastered the art of presenting high impact experiences in movie theaters," said Robert Hewitt, vice president of sales at THX. "THX has shared a long and successful partnership with Cinemark Theatres, having teamed with them to create some of the nation’s premiere cinema venues, and we are thrilled to extend this relationship to more and more movie-goers around the country."

Moviegoers recognize the difference THX brings to the cinema experience. A recent Nielsen NRG study revealed that U.S. moviegoers associated THX with the best sound systems, excellent picture quality, the most advanced technologies and a more exciting movie-going experience.

For more information about THX Certified Cinemas, visit www.thx.com.

About Cinemark Holdings, Inc.
Headquartered in Plano, TX, Cinemark is a leader in the motion picture exhibition industry. As of September 30, 2007, Cinemark operates 404 theatres and 4,596 screens in 38 states in the United States and internationally in 12 countries, mainly in Mexico, South and Central America. For more information go to www.cinemark.com.

Forward-looking Statements
Certain matters within this press release include "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. All statements included herein, other than statements of historical fact, may constitute forward-looking statements. Forward-looking statements may involve known and unknown risks, uncertainties and other factors that may cause the actual results or performance to differ from those projected in the forward-looking statements. For a description of these factors, please review the "Risk Factors" section or other sections in the Company's 424(b)(1) prospectus filed April 24, 2007 and quarterly reports on Form 10-Q filed with the Securities and Exchange Commission. All forward-looking statements are expressly qualified in their entirety by such risk factors.

ABOUT THX LTD.
THX Ltd. was founded by filmmaker George Lucas to improve the way movie audiences experience the sights and sounds of feature films on the silver screen. The goal, then and now, is to continually improve the entertainment experience through strict engineering performance standards, innovative product designs and breakthrough technologies. Leading companies from around the globe count on THX to help them create better, more innovative products and services. For more information, visit www.thx.com.

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