Weekend Edition Tonight - Saturday "Sunset Boulevard" (TCM, 5:00 p.m.) The movie about the fickleness of stardom in Hollywood. It's somehow beyond a classic. "American Movie" (IFC, 6:15 p.m.) The movie about self-financed redneck-geek movie maker Mark Borchardt's project "Coven", pronounced "koh-vehn" Ducks @ Sharks (KDOC, 7:30 p.m.) Didn't these guys just play each other a couple days ago? Are there only 3 or 4 teams in the NHL? Stars @ Kings (Fox Sports,......