Your Sister's Sister Overview
A man (Mark Duplass) falls into bed with his best friend's (Emily Blunt) sister (Rosemarie DeWitt), leading to an unexpected love triangle when his friend arrives the next day.
Rating
R — Language, Some Sexual Content
Your Sister's Sister cast and crew
- Emily Blunt as Iris
- Rosemarie DeWitt as Hannah
- Mark Duplass as Jack
- Mike Birbiglia as Al
