I might even go so far back as to "Have Rocket Will Travel" with the Three Stooges in '59. Stooges were comedy, right? Depends on who you ask i guess....
For a credited entry I would go back to "The World Of Henry Orient" with Peter Sellers from '65. Sorry for the interjection, just a Elmer fan and a George Roy Hill fan finally finding a way to up my post count one step closer to a 1,000 posts.