This is a gay version of the classic spoofs like “Airplane” and “Naked Gun” and was created with RuPaul’s “Drag Race” sensibility (plus a few obvious references to the show). Two train stewardesses (Jujubee and Ginger Minj) are working on the luxurious Glamazonian Express, when a massive storm threatens everyone on board. Keeping with the genre, there’s a cast crammed with B-level stars like Nicole Richie, Jerry O’Connell, Sarah Michelle Gellar and Charo. RuPaul plays the president with a campaign slogan that’s one of the funniest lines in the movie (“She Fun”). Director Adam Shankman, who got his gay cred with “Hairspray,” has kept the energy flowing and done his best to make the silliness work. The cast is also trying hard, but writers Christina Friel and Connor Wright didn’t give them enough to work with. There’s an obvious camp factor that adds a layer of fun, but this is one of those joke-a-minute romps, where more jokes wreck than arrive safely. Interestingly, there were more straight couples in the audience when we went. 2.5 out of 5.0 stars