Cinematical has just received this exclusive poster for The Great Buck Howard, which premiered last year at the Sundance Film Festival, and is gearing up to hit theaters on March 20th. Starring John Malkovich, Colin Hanks, Tom Hanks and Emily Blunt, The Great Buck Howard tells of a has-been magician (Malkovich) who stages an unlikely comeback thanks to his new assistant (Colin Hanks). Last year at Sundance, Scott Weinberg calledBuck Howard a "smoothly, strongly appealing comedy" that's also a "a feel-good movie that doesn't make you feel stupid for feeling good." Check out the full size poster by clicking on the image below.