| Cast overview, first billed only: | |||
| Jerry Lewis | ... | Wilbur Swain / Caleb Swain | |
| Madeline Kahn | ... | Eliza Swain / Lutetia Swain | |
| Marty Feldman | ... | Sylvester | |
| John Abbott | ... | Dr. Frankenstein | |
| Jim Backus | ... | President of the U.S. | |
| Samuel Fuller | ... | Col. Sharp | |
| Merv Griffin | ... | Anchorman | |
| Pat Morita | ... | Ah Fong - the Chinese Ambassador | |
| Virginia Graham | ... | Gossip Specialist | |
| Ben Frank | ... | Quentin - the Handyman | |
|
|
Cheire Harris | ... | Maria - the Maid (as Cherie Harris) |
|
|
Robert Hackman | ... | Study Hall Supervisor |
|
|
Eugene Choy | ... | Lum Fung |
|
|
Ken Johnson | ... | Horace |
| Peter Kwong | ... | Chinese Astronaut | |
Caleb Swain and his wife Lutetia are a rich couple deemed to be the most beautiful of all the beautiful people by the press. This changes when Lutetia gives birth to oversize, deformed twins named Wilbur and Eliza. Unknown to them, the twins are really an alien brother-and-sister team implanted in Lutetia to solve the world's problems. When they are apart they are not much smarter than a potted plant, but together they are an intellectual force to be reckoned with. Their closeness is put to the test when a series of events threatens to keep the twins apart. Mixed in with all this is a miniaturized Chinese ambassador who needs the twins' help to make a deal for the sale of gravity. Written by Kyle Palkowski.
Recently I've been re-reading the Vonnegut catalog. All the books brilliant in their own way. I picked up Slapstick and started reading it again when everything clicked. The horrible movie I saw on cable as a kid was based on this book. I never connected the two because of how the movie takes the book, shreds it, puts a hollywood sheen on it, dripped slime on it, then pooted it out unto the world. Horrifying. I have very vivid memories of my mother watching this film and commenting on how horribly sad it was. I responded that the book was sad. She then responded that the book was good. No fault lies with the cast. It's just another example of the old connundrum, Vonnegut books don't translate well to film.