A teen traveling with her mother to a treatment center for her agoraphobia has to fight for their lives against a gunman who attacks them. Release Date: August 14, 2015. Genre: Drama. Director: Jorge Michel Grau. Writer: Evan M. Wiener. Stars: Bella Thorne, Kyra Sedgwick, Frank Grillo. Big Sky official trailer courtesy of Phase 4 Films. FilmTrailerZone is the #1 destination for all movie fans to catch the latest movie trailers, clips, featurettes & much more of the latest promotional content from your most anticipated movies!.