Your Sister's Sister (2012)
Doing The Right Thing With The Wrong Person
In Your Sister's Sister set against the damp foliage of the Pacific Northwest, Humpday star Mark Duplass plays Jack, still reeling from his brother's death a year earlier. His close friend Iris (Emily Blunt), who happens to also be the ex of Jack's brother, ships him off to her family's remote vacation home so he can be alone to get himself back together.
Iris invites her friend Jack to stay at her family's island getaway after the death of his brother. At their remote cabin, Jack unexpectedly finds Iris' sister Hannah (Rosemarie DeWitt) there for similar purposes, and the two quickly get to know each other over an evening of tequila. When Iris arrives unannounced the next morning, it sets off a chain reaction of revelations and shifting dynamics.
Cast:Mark Duplass, Emily Blunt, Rosemarie DeWitt, Mike Birbiglia, Mel Eslyn, Kate Bayley, Jeanette Maus