Grab your 3-D glasses and forget 35mm film.

Astoria movies enter the 21st Century this week, as Coming Attraction Theaters Inc. installs Christie Solara digital projectors in Gateway Cinemas on Marine Drive.

“This is the largest event – the entire conversion from 35mm to digital – in the history of the industry,” said Tim Wood, vice president of Coming Attractions. He expects contractors to finish the conversion in Astoria by Friday, with some cancellations of matinee shows.

The new theater will become a hardwired network, in which a master computer orchestrates shows in all the auditoriums, each equipped with its own server for movies.

The purchase of more than 100 projectors completes the conversion to digital the company began more than three years ago. >GDC Technology Limited, a globally based multiedia delivery specialist, is installing them

“I am excited to continue this company’s long association with Christie Digital Systems Inc.,” said John Schweiger, president and CEO of the theater company. “We have been a Christie customer for more than 20 years, and with this purchase, we are scheduled to be a 100 percent Christie digital theatrer operator.”

Christie Digital set the GuinnessWorld Record for largest 3-D projection July 12, during the French 3-D premier of “Harry Potter and the Deathly Hallows: Part 2” in front of 8,000 people in Paris.

“The ability of digital cinema technology to vastly improve the movie-going experience makes film-to-digital conversion the top priority for exhibitors,” said Craig Sholder, vice president of Christies Entertainment Solutions. “We look forward to continuing our long and mutually beneficial relationship between Christie and Coming Attractions, as together we provide moviegoers with an unparalleled entertainment experience.”

Coming Attractions Theatres operates 151 screens in 19 locations in four states. It owns the Gateway Cinemas in Astoria, and the Seaside Cinemas, for which there is no set date for digital conversion.