The film shares similarities with a Star Trek parody, and it’s easy to see why. Tim Allen, known for his roles in “Home Improvement” and "Last Man Standing," brings his comedic talent to the ensemble cast, which also features Sigourney Weaver, Tony Shalhoub, Alan Rickman, and Sam Rockwell. They portray the former stars of the popular television series Galaxy Quest. Following the show’s conclusion, their careers have stalled, and they now earn a modest income by repeating their roles at science fiction conventions or even promotional events. While Tim Allen enjoys meeting dedicated fans as "Commander Jason Nesmith," the other actors are less enthusiastic about these appearances and feel that “Commander” receives too much attention. During one of these store opening engagements, the cast encounters a remarkably realistic replica of the show’s spaceship, along with individuals who fully embrace their roles as aliens requesting assistance from the celebrated crew. Unexpectedly, they discover themselves transported into space for a genuine adventure. It's genuinely funny and kept me amused until the very end; I was disappointed when it concluded because I enjoyed it so much.

Source on TMDB