A Funny Thing Happened on the Way to the Forum is a 1966 Anglo-US musical comedy romance film. It features Zero Mostel, Jack Gilford, Phil Silvers, Buster Keaton, Michael Crawford, Michael Hordern, Roy Kinnear, Alfie Bass, Frank Thornton, and Peter Butterworth.
A wily Roman slave schemes to earn his freedom by romantically uniting his master with a courtesan. But matters get complicated and he ends up dragging in his neighbours around him, leading to chaos.