Writers:
Frédéric Dard (French dialogue),
Laverne Owens (dialogue: U.S. version),
Francisco Pérez-Dolz (screenplay),
Francisco Pérez-Dolz (story),
Luis S. Póveda (screenplay),
Luis S. Póveda (story),
José Antonio de la Loma (screenplay),
José Antonio de la Loma (story)