The opening credits of the film begin with a shot of the plank itself, with the caption "Starring The Plank". This leads on to a succession of credits, some of which try to squeeze into the frame, and others which are sung by the cast. The final entry is a credit, also spoken by Eric Sykes, which reads: "Oh! ... And The Cat!"
The closing credits feature a shot of Tommy Cooper and Sykes looking into the camera as a cartoon crate is nailed around them with the words "This Way Up" and "The End".