Anna Kendrick shakes things up in the new film, Happy Christmas. Kendrick plays Jenny, a young woman who is thrust into the reality of adulthood after a breakup forces her to move in with her brother and his wife. Will Jenny’s erratic behavior and questionable relationships push her family over the edge? Or will things resolve themselves just in time for Christmas, possibly making it a happy one? Only time and box office receipts will tell. The film opens July 25 at the Music Box Theater here in Chicago, and The A.V. Club has an opportunity for you to attend a showing. Simply follow the link here and fill out your information. Winners will be notified via e-mail opening week. A synopsis and trailer for the film can be found below.