Lynn Shelton is one of the best filmmakers to come out of the last decade (no, I will not use the "M" word), and she returns to the big screen with her newest film Your Sisters Sister, starring Mark Duplass, Emily Blunt, and Rosemarie DeWitt. Duplass plays Jack, a man still reeling from the death of his brother, who is invited up to a family cabin for some "alone" time by best friend Iris (Emily Blunt). When he gets there, he finds Iris's half sister, Hannah (Rosemarie DeWitt), and, after blasting through a bottle of tequila together, inhibitions loosen (and, apparently orientations, as Hannah is a lesbian), and Jack and Hannah end up in a compromising situation, which they spend part of the film trying to hide from Iris.
Your Sisters Sister builds on the small group dynamics that Shelton seems to be working on in all of her films (most of them have no more than three main characters), and it feel like she has really come into her own on this one. It comes off as a well crafted, relatively subtle, portrayal of love (both familial and romantic), loss, and loneliness. She really could not have chosen three better actors to play the roles. This is, in my opinion, a must see.