The Stupids is a 1996 British-Canadian-American adventure comedy film directed by John Landis. The film is based on The Stupids, characters from a series of books written by Harry Allard and illustrated by James Marshall.
The film follows the fictional family, the Stupids, with a last name synonymous with their behavior. The story begins with patriarch Stanley Stupid believing "sender" from letters marked "return to sender" is a wicked man planning a conspiracy. Adding several misunderstandings, the family unwittingly saves the world from military chaos, while believing a fake story about a fictional man named Sender and his plot to confiscate everyone's mail and trash.