Slapstick of Another Kind (1982)

Director: Steven Paul

A rich, beautiful couple give birth to deformed alien twins who, when their heads are together, are the smartest kids on the planet.

Cast

Jerry Lewis

Wilbur Swain / Caleb Swain

Madeline Kahn

Eliza Swain / Lutetia Swain

Marty Feldman

Sylvester

Jim Backus

President of the U.S.

Merv Griffin

Anchorma

Pat Morita

Ah Fong, the Chinese Ambassador

Orson Welles

Aliens' Father (voice)

John Abbott

Dr. Frankenstein

Samuel Fuller

Colonel Sharp