A “bait and switch” movie is a movie whose title and marketing seem to promise one thing, but which turn out to be about something else entirely.
The classic example: Pearl Harbor, succinctly described by some as about “what happens when the Japanese bomb an American love triangle.” There’s so much movie devoted to the love triangle that the Japanese attack comes off as kinda beside the point.
My contribution: The Black Dahlia. It’s purportedly about the Black Dahlia murder, and she does show up, but the bulk of the movie is about a love triangle between the two cops investigating the murder and Scarlett Johansen. The Black Dahlia seems almost irrelevant to the real main story.
Other bait and switches?