Here's a true Black comedy. That's because it stars Jack Black. He's a blast as a suddenly successful entrepreneur whose best friend and neighbor (Ben Stiller) resents his buddy's good fortune and rues the fact that he blew the opportunity to join him in his wildly lucrative venture. Christopher Walken excels as a barroom philosopher who imparts some dubious advice to Stiller. Barry Levinson directed. Rachel Weisz, Amy Poehler.