
During World War I, a German U-boat sinks a British passenger ship and takes the survivors aboard. After getting lost in fog, the submarine surfaces near the unknown island of Caprona, a lost world where they find dinosaurs and Neanderthals.
Cast

Doug McClure
Bowen Tyler

John McEnery
Captain Von Schoenvorts

Susan Penhaligon
Lisa Clayton

Keith Barron
Bradley

Anthony Ainley
Dietz

Godfrey James
Borg
Bobby Parr
Ahm
Declan Mulholland
Olson

Colin Farrell
Whiteley

Ben Howard
Benson

Roy Holder
Plesser

Andrew McCulloch
Sinclair

Ron Pember
Jones
Grahame Mallard
Deusett
Andrew Lodge
Reuther
Stanley McGeagh
Hiller

Steve James
First Sto-Lu

Brian Hall
Schwartz
Peter Sproule
Hindle
Crew

Kevin Connor
Director
Michael Moorcock
Screenplay
James Cawthorn
Screenplay

Edgar Rice Burroughs
Novel
John Ireland
Editor

Alan Hume
Director of Photography
Robert H. Greenberg
Executive Producer
John Dark
Producer
Max Rosenberg
Producer

Milton Subotsky
Producer
John Peverall
Associate Producer
Maurice Carter
Production Design

Julie Harris
Costume Design

Derek Meddings
Special Effects Supervisor
Ian Wingrove
Special Effects
Roger Dicken
Special Effects
Douglas Gamley
Original Music Composer
Doreen Soan
Continuity
Bert Davey
Art Direction
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