A Cleveland executive (Parker Posey) finally achieves orgasm after acquiring a vibrator, which drives her already disgruntled husband (Paul Rudd), a high school biology teacher, into the arms of an A student (Mischa Barton). Director Billy Kent seems to have instructed most of his actors to behave like robotic sitcom characters; the principal exception is Danny DeVito, who simply behaves like Danny DeVito. I couldn’t predict where this unrated comedy was going but didn’t much care. With Miranda Bailey and (in an embarrassing cameo) Liza Minnelli. 88 min. (JR)