The Oil Sharks () is a 1933 German drama film directed by Rudolph Cartier and Henri Decoin and starring Arlette Marchal, Vivian Grey and Gabriel Gabrio.Youngkin p. 466 It is the French-language version of Invisible Opponent, made with the same crew but a largely different cast and some alterations to the story line. The sets for both films were designed by the art director Erwin Scharf.

Cast In alphabetical order Raoul Aslan as Delmonde Raymond Cordy as Hans Mertens Gabriel Gabrio as James Godfrey Jean Galland as Pierre Ugron Vivian Grey as Eve Ugron Peter Lorre as Henry Pless Arlette Marchal as Jeannette Robert Ozanne as Santos

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