Walk, Don't Run is a 1966 American comedy film directed by Charles Walters, and starring Cary Grant in his final film role, Samantha Eggar and Jim Hutton. The film is a remake of the 1943 film The More the Merrier and is set during the 1964 Summer Olympics in Tokyo. The title stems from the basic rule of racewalking that competitors must not at any point run (both feet leaving the ground).