In early 2011, it was reported that writer-director Paul Thomas Anderson would adapt Inherent Vice into a feature film. The film stars Joaquin Phoenix (who also starred in Anderson's 2012 film The Master) and is narrated by musician Joanna Newsom.[5] On September 29, 2014, the first trailer and a poster for the film were released by Warner Bros.[6] The film opened in the United States on December 12, 2014 to positive reviews.