From a psycho obsessed killer in The Juror to a smooth pompous ex-husband in It's Complicated, it is clear Alec Baldwin can adapt to any role. Even if it's an adaptation of Clifford Odets' 'The Big Knife', which he performs tonight at UB's Center for the Arts. But forget that crap. Baldwin is at his best on Saturday Night Live on NBC , where he really gets to show his versatility. Isn't that right Canteen Boy?