Leaves of Grass is a 2009 American black comedy film written and directed by Tim Blake Nelson. It stars Edward Norton as twin brothers, alongside Richard Dreyfuss, Nelson, Susan Sarandon, Melanie Lynskey and Keri Russell. The plot revolves around an Ivy League professor who returns to his hometown, only to discover that his twin brother, a marijuana grower, has devised a scheme to confront a local drug kingpin.