2) Galaxy Quest
"For four years, the courageous crew of the NSEA Protector-- 'Commannder Peter Quincy Taggart, ' 'Lt. Tawny Madison, ' and 'Dr. Lazarus'-- set off on thrilling and often dangerous missions in space-- and then their series was cancelled! Now, twenty years later, aliens under attack have mistaken the Galaxy Quest television transmissions for 'historical documents' and beamed up the crew of has-been actors to save the universe. With no script, no director...
3) Galaxy quest
Twenty years after the cancellation of the television program, Galaxy Quest, the stars cling to their careers appearing at sci-fi conventions and electronic store openings. When a distressed interstellar race mistakes the show for 'historical documents, ' Jason Nesmith and his crew of has-beens are unwittingly beamed up onto their alien ship with the misguided hope that they can defeat a genocidal space nemesis.