Galaxy Quest (Blu-ray)

Galaxy Quest is a 1999 American satirical science fiction comedy film directed by Dean Parisot and written by David Howard and Robert Gordon. It stars Tim Allen, Sigourney Weaver, Alan Rickman, Tony Shalhoub, Sam Rockwell, and Daryl Mitchell. 

The cast of the 1980s space-adventure series Galaxy Quest attend fan conventions and make trivial promotional appearances. Though the series' vain former star, Jason Nesmith, thrives on the attention, his co-stars Gwen DeMarco, Alexander Dane, Fred Kwan, and Tommy Webber resent him and their stalled careers. At a convention, a group calling themselves Thermians approaches Jason for help. Thinking they want him for a promotional appearance, he agrees. Jason also overhears two attendees mocking him and the fans. Despondent, he brusquely dismisses other fans, including Brandon, before going home to drink and watch reruns of the series.

The next morning, when the Thermians pick him up, a hungover Jason does not grasp that they are actual aliens who have transported him to a working re-creation of the Galaxy Quest starship, the NSEA Protector. Jason believes he is on a set, and performs in character as he confronts the Thermians' enemy, Sarris, who demands the Omega 13, a secret super weapon with unknown capabilities mentioned but never used in the show's finale. Giving perfunctory orders, Jason fires on and temporarily defeats Sarris.

After the grateful Thermians transport him back to Earth, Jason realizes the experience was real and attempts to convince the other cast members. In his excitement, Jason bumps into Brandon again, accidentally swapping Brandon's toy communicator with a real one Jason acquired from the Thermians. When one of the Thermians, Laliari, seeks Jason's help again, the cast joins him, along with the convention emcee, Guy, who had played an ill-fated extra in one episode. Aboard the Protector, the cast learn that the Thermians, who possess no concept of fiction, believe the episodes of Galaxy Quest are true historical documents. Inspired by the crew's adventures, they have based their society on the virtues espoused by the show.