The Runaway Bus is a 1954 British comedy film produced, written and directed by Val Guest. It stars Frankie Howerd, Margaret Rutherford and Petula Clark and an ensemble cast of character actors in a story about a bus caught in fog while a gang of crooks tries to carry off a heist. The film was shot at Southall Studios in London with sets designed by the art director Wilfred Arnold. It was the film debut of Belinda Lee. The film is referenced in an episode of Frankie Howerd's 1970s radio series.