WHAT?   The Green Lifestyle Film Festival  http://www.greenlifestylefilmfestival.com/ WHEN?   March 13-15th WHERE?  UCLA James Bridges Theatre, 405 Hilgard Ave., 1409 Melnitz Hall, Westwood (310-854-2078 or 310-206-8013). HOW?  Opening celebration, $65; passes, $55-$250