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