Take the most depressing movie imaginable, add The Golden Girls, multiply by Cocoon, and that's How To Live Forever. Suicidal thoughts aside, though, this is an expert documentary, a responsible yet lighthearted film about the absurd things that folks do in the face of death. As he lives his midlife crisis out on camera, director Mark Wexler mocks the largely fraudulent "anti-aging marketplace" without altogether dismissing it. Interviewing a range of wrinkled asses — from golden oldie Jack LaLanne, to ditz extraordinaire Suzanne Somers, to wiz futurist Ray Kurzweil — Wexler addresses questions on tangential issues like overpopulation. He even provides answers, illustrated by examples like the real-life Mister Miyagi in Okinawa, who live long on happiness and little else. Forever has stretches that are duller than senior citizenship, but maybe that's the point. Or maybe people will watch this 500 years from now and laugh at skeptics who thought eternity would bore us.