Your Sister's Sister (2012)

Man still suffering the loss of his brother a year before is urged by his best (girl)friend to spend some alone time at her family’s vacation home to get his head straight. However, her lesbian stepsister, reeling from a breakup, is already staying there. Shenanigans ensue.

This is kind of a weird movie. It deals with some pretty big situations in a very surfacey way -- and the situations are almost too unbelievable. It’s almost like a sitcom plot played straight. Rosemarie DeWitt and Mark Duplass are really good, though. This is the third straight movie in which Duplass has impressed me, the other two being Humpday and Safety Not Guaranteed.

B-