The World's Greatest Lover (1977)

Synopsis
After writing, directing, and starring in The Adventure of Sherlock Holmes' Smarter Brother, Gene Wilder added the producer's hat to his three-headed beast in The World's Greatest Lover. Wilder plays Rudy Valentine, a Milwaukee baker who enters a talent search in the Hollywood of the 1920s, initiated by movie studio mogul Zitz (Dom DeLuise), to find a new Rudolph Valentino. He travels to Hollywood with his wife Annie (Carol Kane) in hopes of taking a screen test, but Annie falls in love with the real Valentino. Jealous of the Latin Lover, Rudy disguises himself as a sheik in an attempt to look like Valentino. Rudy then invites Annie to a rendezvous at the studio, where he tries to seduce his own wife. ~ Paul Brenner, All Movie Guide