Busman's Honeymoon (US: Haunted Honeymoon) is a 1940 British detective film directed by Arthur B. Woods. An adaptation of the 1937 Lord Peter Wimsey novel Busman's Honeymoon by Dorothy L. Sayers, Busman's Honeymoon stars Robert Montgomery, Constance Cummings, Leslie Banks, Googie Withers, Robert Newton and Seymour Hicks as Mervyn Bunter.