Happy Christmas is a 2014 American comedy-drama film written, produced and directed by Joe Swanberg. It stars Swanberg, Anna Kendrick, Melanie Lynskey, Mark Webber, and Lena Dunham. Like most of Swanberg's previous features, the film's dialogue was entirely improvised.The film had its world premiere at the 2014 Sundance Film Festival (where it was nominated for the Grand Jury Prize in the U.S. Dramatic Competition) on January 19, 2014.It was released on June 26, 2014, through video on demand prior to being released in a limited release July 25, 2014 in the United States by Magnolia Pictures.