Comedians push the boundaries, laugh at themselves and expose hypocrisy in others. These dynamics are fully at play in two hilarious documentaries: Joan Rivers: A Piece of Work and Just Like Us. Discomfiture is central to Cyrus (starring Jonah Hill and John C Reilly) and the absurdist Mammuth (featuring Gerard Depardieu). Hong Kong rom-com Love in a Puff is liberally spiced with lewd asides, while A Somewhat Gentle Man has a darker, northern sensibility. You have to wait for the genius wordplay in Police, Adjective, then it hits when you least expect. Taika Waititi's droll and charming Boy will have you grinning ear-to-ear and so will the lousy rugby players in Freetime Machos.