MOSCOW — The new addition to the Russian pantheon of cinematic World War II heroes, a Soviet agent who has infiltrated the SS, has an unfortunate habit of waving around his passport, which is stamped with gold letters reading “Working Spy of the Soviet Union.”

Pavel Derevyanko, the star of “Hitler Kaput!,” a low-brow farce that opened Thursday in Moscow cinemas, dozes off while stealing top-secret documents, accidentally photocopying his face. He launches into a sentimental rendition of “Kalinka,” probably Russia’s most familiar folk song, at a Nazi watering hole. While groping a busty radio operator, he accidentally runs over people with a tank, making splattering sounds. In short, he is an idiot.