Trying to film live theater is always a risky business. It typically brings out the worst of both mediums, sacrificing the spatial freedom of film and the intimacy of theater. But this is a theater-on-film moment I gotta see: Roger Allam, winner of two Laurence Olivier Awards for best actor (and one for best supporting actor), playing Falstaff in Henry IV, Part 1 in the reconstructed Globe Theatre in London. It's one of England's best living actors playing one of the saddest, funniest, wittiest characters in the English language on one of the world's most famous stages. (Pacific Place, 600 Pine St, 652-8908, 6:30 pm, $12.50)