Our Idiot Brother (2011)

Easygoing, dimwitted slacker Ned Rochlin (Paul Rudd) makes the biggest mistake of his so-far uninspired life when he sells some pot to a cop. Homeless and jobless upon his release from jail, Ned must prevail upon his three sisters (Elizabeth Banks, Zooey Deschanel, Emily Mortimer) for help. Though Ned himself is utterly without a shred of ambition or guile, it's a different story with his sisters, who find their carefully ordered lives thrown into chaos whenever he's around.