Leaves of Grass may be the best movie that I have seen out of the 2009 crop to date. On the surface, it is very similar in style to the Coen brothers in that it features average characters who find themselves in dangerous situations which force them to confront their morals, bizarre supporting characters, and black humour including scenes of absurd violence but it is more than that. Tim Blake Nelson wrote an excellent screenplay and directed the film admirably. Edward Norton plays both feature roles, a professor of classical philosophy in Rhode Island and his twin brother who grows …