 After Welles's return he and Cotten co-produced "The Mercury Wonder Show" for members of the U.S. armed services.Opening August 3, 1943, the all-star magic and variety show was presented in a tent at 9000 Cahuenga Boulevard in Hollywood.Featured were Welles (Orson the Magnificent), Cotten (Jo-Jo the Great), Rita Hayworth (forced to quit by Columbia Pictures boss Harry Cohn and replaced by Marlene Dietrich), Agnes Moorehead (Calliope Aggie) and others.