Directed by Kenneth Branagh Produced by Kevin Feige Screenplay by Ashley Edward Miller Zack Stentz Don Payne Story by J. Michael Straczynski Mark Protosevich Based on Thor by Stan Lee Larry Lieber Jack Kirby Starring Chris Hemsworth Natalie Portman Tom Hiddleston Stellan Skarsgård Colm Feore Ray Stevenson Idris Elba Kat Dennings Rene Russo Anthony Hopkins Music by Patrick Doyle Cinematography Haris Zambarloukos[1] Editing by Paul Rubell[1] Studio Marvel Studios Distributed by Paramount Pictures[a] Release dates April 21, 2011 (Australia) May 6, 2011 (United States) Running time 114 minutes[5] Country United States Language English