Assigned by the minister of atomic power to escort famed atomic physicist Dr. Spiegel to a NATO conference in London, happy-go-lucky civil servant Dick Lanchester stops to flirt with Susan Turner, daughter of a racehorse owner. Dr. Spiegel, a turncoat, sees his chance to escape the country with some secret microfilm while Dick's attention is diverted. Waiting for Spiegel are his confederates, but he mistakenly gets into the horse van being driven by Susan to the racetrack. The frightened horse rears, Spiegel drops the film in the hay, and the animal swallows it. Following the horse's victory at the races, it is put up for auction. Dick, who has since learned of Spiegel's attempted defection, is outbid by the spies because his superior refuses to give him proper authorization to purchase the horse. As the spies escape with the mare to an abandoned airfield, Dick and Susan give chase. They recover the horse, capture the spies, and eventually retrieve the film in the course of nature.

Director:
Alan Bromly	Director
Frederic Goode	Assistant Director
Michael Profit	Assistant Director
Bill Cartlidge	1st, 2d & 3d asst dir
Cast:
David Tomlinson	as Dick Lanchester
Cecil Parker	as Sir William Crane
Richard Wattis	as Hugh Porlock
Mary Peach	as Susan Turner
Dora Bryan	as Miss Bradstock
Raymond Huntley	as Special branch chief
Sam Kydd	as Farrell
George Pravda	as Hammler
John Welsh	as Major Turner
Peter Copley	as Garrod
Cyril Shaps	as Dr. Spiegel
Victor Brooks	as Blake
Vic Wise	as Riley
George A. Cooper	as Rudd
Tony Thawnton	as Special Branch man
Alison Fraser	as Harriet
Arthur Lowe	as Auctioneer
John Phillips	as American delegate
Guy Deghy	as German delegate
John Crewdson	as Pilot
Cinematography:
Norman Warwick	Director of Photography
Tony White	Camera Operator
Maurice Arnold	Cam focus
Writer:
Alfred Shaughnessy	Screenwriter
William Douglas Home	Addl scenes
Howard Mason	Adaptation
Producer:
Thomas Clyde	Producer
Editing:
Gerald Turney-Smith	Film Editor
Don Deacon	1st asst ed
Martin Magee	2nd asst ed
Music:
Stanley Black	Music
Art Director:
Harry White	Art Director
Pamela Cornell	Asst art dir
Make-Up:
Eric Aylott	Chief makeup
Polly Young	Chief hairdresser
Costume-Wardrobe:
Eileen Sullivan	Ward mistress
Sound:
Allan Morrison	Sound
H. L. Bird	Sound Recording
Len Shilton	Sound Recording
Don Wortham	Boom Operator
Terry Sharrett	Sd cam op
Film Production - Main:
Tom White	Prod continuityroller
Victor Peck	Production Manager
June Randall	Cont
George Higgins	Stills
Charles Sutton	Prop buyer
Robert Lennard	Casting dir
E. Bonnichon	Crowd casting
W. Osborne	Prop master

Location scenes filmed in London. Opened in London in July 1960.

Based on the novel Photo Finish by Howard Mason (London, 1954).