A weird homage to British science fiction from Quatermass and Dr. Who through Alien, the Tobe Hooper-directed Lifeforce may be one of the strangest films ever to receive a wide theatrical release. Equating its strangeness with artistic merit, however, is more of a stretch. Playing like a lot of silly movies folded into one, it features a nude vampire (Mathilda May), space exploration, and a plague of zombies. Played with a straight face, it never appears to recognize its own absurdity, which should be no difficulty for viewers. Never all that successful, as horror or as satire, it's also never dull, making ideal, undemanding late-night viewing fodder.