Take a sneak peek into the bedrooms of swingers--your neighbors and fellow       Americans who make group sex and partner swapping a regular part of their        lives. Far from a glamorized, erotic exploitation film, The Lifestyle      lets you see the full variety of swingers: the middle-aged, the elderly, the   haven't-seen-the-gym-in-ages. Visit the conventions, see how religious beliefs play into the practice, and learn how shockingly ordinary many of these sexual adventurers are in other aspects of life. ADULTS ONLY.                           David Schisgall---USA---1999---78 mins.