Filmed by Fred J. Balshofer in 1918 as the anti-German war drama Over the Rhine, the project was reshaped and released in 1920 as An Adventuress—a cross-dressing caper set in the fictional republic of Alpania and headlined by female-impersonation star Julian Eltinge, with early appearances by Rudolph Valentino and Virginia Rappe. The film was later re-edited and reissued in 1922 as The Isle of Love.