Leaves of Grass (2009)

Director: Tim Blake Nelson

Cast: Edward Norton as Bill Kincaid / Brady Kincaid, Lucy DeVito as Miss Greenstein, Kent Jude Bernard as Philosophy Student, Amelia Campbell as Maggie Harmon, Tim Blake Nelson as Bolger, Randal Reeder as Shaver, Leo Fabian as Wadell, Tina Parker as Sharon, Susan Sarandon as Daisy Kincaid, Ty Burrell as Professor Sorenson, Lee Wilkof as Professor Nathan Levy, Melanie Lynskey as Colleen, Josh Pais as Ken Feinman, Lisa Benavides as Suzie Feinman (as Lisa Benavides-Nelson), Jenna Podell as Staci Feinman

I liked this film about two twin brothers, played by Edward Norton.
They're very different: one grows pot in his Oklahoma home and the
other wants to attain more and more academic prowess. The first
concocts hare-brained get rich schemes while the other drinks tea with
scholars and speaks - when he has to - about his "eccentric" family.
That is, until their paths meet again.

Bill Kincaid (scholar) suddenly gets word that his brother Brady has
died, and hence he returns to Oklahoma for what comes next. He's
mentally not prepared to meet the rest of his estranged family,
including his mother, played by Susan Sarandon. And what about his
brother, anyway? All in all, a nice film with a bunch of dark twists to
it. It's one of the better I've seen where one person plays several
parts without it all becoming "Pink Panther" - kudos to Peter Sellers'
brilliant acting included - and hence leaving the audience with the
sense of showmanship, but it's also neatly directed by Tim Blake
Nelson, who plays Brady's best friend and is probably most well-known
for his part in "O Brother, Where Art Thou?".