Strange Case of Dr Jekyll and Mr Hyde
The film itself is both a spoof of the previous Dr. Jekyll and Mr. Hyde films (e.g. "Dr. Jekyll and Mr. Hyde" (1912) and "Dr. Jekyll and Mr. Hyde" (1920)) and the well-famed 1886 novella by Robert Louis Stevenson "Strange Case of Dr Jekyll and Mr Hyde." The film stars Stan Laurel as the title characters.