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Summary

In World War II, the greatest threat to the British navy is the German battleship Tirpitz. While anchored in a Norwegian fjord, it is impossible to attack by conventional means, so a plan is hatched for a special commando unit to attack it, using midget submarines to plant underwater explosives.

Cast

John Mills

Commandant Fraser

John Gregson

Lieutenant Alec Duffy

Donald Sinden

Lieutenant Tom Corbett

James Robertson Justice

Admiral Ryder

Michael Medwin

Smart

Theodore Bikel

German Officer

James Kenney

Abercrombie

William Russell

Ramsey

O.E. Hasse

Captain of the Tirpitz

Lee Patterson

Cox

Harry Towb

McCleery

Cyril Chamberlain

CPO Chubb

Tony Wager

George

Leslie Weston

Winley

Lyndon Brook

Diver Navigator, X2

Thomas Heathcote

Hutchins

Anthony Newley

Engineer, X2

John Horsley

Lt. Anderson

William Franklyn

No. 1, X2

Guido Lorraine

Officer Interpreter

Raymond Francis

Officer on Towing Sub. (1)

Basil Appleby

Officer on Towing Sub. (2)

Walter Gotell

German Officer on Tirpitz

Victor Harrington

RAF Officer (uncredited)

Arthur Howell

German Navy Officer (uncredited)

Barry Keegan

Sailor on Towing Sub (uncredited)

Frank Lawton

Naval Officer in Briefing Room (uncredited)

Crew

Director

Ralph Thomas

Screenplay

Robin Estridge

Reviews

Geronimo1967

November 14, 2022

7

John Mills sets off to convince a sceptical Admiral (James Robertson Justice) of the merits of "midget" submarines in active warfare. His intention is to use these tiny craft to lay high explosives underneath the hull of the mighty Nazi battleship "Tirpitz" that is safely anchored in a steep-sided Norwegian fjord. John Gregson and Donald Sinden join him on the mission deep into the heart of enemy territory fighting both the elements and the novel technology. You get a sense of he claustrophobic conditions - and of the close teamwork that engenders, as well as the fragility of their craft and; tempered by the odd light-hearted moment, this is quite a gripping little wartime tale.