The Gorilla (1939)

The Gorilla is a 1939 comedy horror film starring the Ritz Brothers, Lionel Atwill, Bela Lugosi, and Patsy Kelly. It was based on a The Gorilla of the same name by Ralph Spence.
Plot outline
When a wealthy man (Lionel Atwill) is threatened by a killer known as The Gorilla, he hires the Ritz Brothers to investigate. A real escaped gorilla shows up at the mansion just as the investigators arrive. Patsy Kelly portrays a newly hired maid who wants to quit because the butler, played by Bela Lugosi, scares her.
Production
By October 1938, 20th Century Fox bought the rights to Ralph Spence's play The Gorilla. Fox wanted production on the film to start in January, which would be when The Ritz Brothers finished their tour. The studio wanted Kane Richmond to play a part in the film, but Richmond was replaced by Edward Norris who signed on for the film Charlie Chan in Reno. Fox signed on Bela Lugosi for the film as the butler. This character was originally meant for Peter Lorre

From publicdomainmovies.net