The Man Who Was Sherlock Holmes

Released under the original title of "Zwei Lustige Abenteurer" ("Two Gay Adventurers" in a USA review translation), with no mention of Sherlock Holmes in the title (even Nazi-Germany honored international copyright laws...for a while), and at no point do the two leads assert they are Sherlock Holmes and Dr. Watson. Nevertheless, two con-men, for their own less-than-honorable purposes, dress as Conan Doyle's characters and let the assumptions fall where they may. They stop a train and, after a series of misadventures, capture a gang of counterfeiters and recover a priceless stamp collection. However, they are arrested as impersonators of the two famous characters, and Conan Doyle attends their trial. Nothing can be proved against them other than they used similar costumes, and they are released to continue to romance the two British girls who assisted them.