I mentioned The Maze on an earlier thread - a true turkey about a laird inheriting a castle only to discover his ancient relative living in the tower is...A FROG. The explanation is priceless. As a child develops in the womb, it goes through all the stages of animals. His uncle stopped at frogdom and was born with human intelligence in a frog's body. A very big frog. Uncle commits sucide at the end when the heroine sees him.
I have this one on DVD.