Those Magnificent Men in their Flying Machines or How I Flew from London to Paris in 25 Hours and 11 Minutes is a 1965 British epic period comedy film that satirises the early years of aviation. Directed and co-written by Ken Annakin, the film stars an international ensemble cast, including Stuart Whitman, Sarah Miles, Robert Morley, Terry-Thomas, James Fox, Red Skelton, Benny Hill, Jean-Pierre Cassel, Gert Fröbe and Alberto Sordi.

Set in the year 1910, the film follows a fictitious air race from London to Paris, with a £10,000 (equivalent to £1,300,000 in 2023) prize, intended to prove that Britain is "number one in the air". The film is noted for its spectacular flying scenes, featuring dozens of period accurate, life-size working aeroplanes. It was shot in 65mm Todd-AO by cinematographer Christopher Challis, and features a film score composed by Ron Goodwin.

Released in the United Kingdom by 20th Century Fox on 16 June 1965, the film was both a widespread critical and commercial success. It was nominated for three BAFTA Awards, winning for Best British Costume Design – Colour, as well as an Academy Award nomination for Best Original Screenplay. The film also received three Golden Globe Award nomination, including for Best Motion Picture – Musical or Comedy.