The Los Angeles Times reports that 20th Century Fox, in honor of Avatar Day, will make an unusual offer available on the website for James Cameron's upcoming film.

Fans can get "free tickets for an early look at 16 minutes of footage from the futuristic thriller that will be shown in more than 100 Imax 3-D theaters around the world."

The Avatar preview will happen twice on Friday, Aug. 21 at 6 and 6:30 p.m. Fans can expect an introduction from Cameron as well as some new footage not shown during the Comic-Con International convention in San Diego this past July.

Avatar will be coming to theaters on December 18.

This promotion also includes more than than 30 Imax 3-D screens overseas. The film will play in more than 225 Imax theaters when it opens Dec. 18.

Imax will be providing 3-D glasses for this event. Tickets will be doled out on a first-come, first-served basis at www.avatarmovie.com at noon PST Monday.