DVD: Your Sister’s Sister, For retail & rental (Studio Canal)

A depressed slacker (Mark Duplass) gets away from it all by visiting his best friend's rural summer house. But he hasn't banked on his friend (Emily Blunt) driving out to join him, nor on her half-sister (Rosemarie DeWitt) staying there already.

This indie farce is an insightful, humane study of the charged relationships between siblings and between men and women, with improvised dialogue that sounds like real speech, only funnier.