A seemingly paradoxical situation that occurs when all of the individual components of a movie (acting, dialogue, editing, etc.) are utterly terrible, yet the movie is nevertheless enjoyable. Most often it applies to a movie that while not meant to be a comedy, is nevertheless hilarious to watch.
Named for 'Springtime for Hitler' from the film 'The Producers'.
'Shark Attack 3' belongs on IMDB's worst 100 list, but because of the Springtime for Hitler effect, many people actually enjoy watching it.