Question: What 2013 superhero film did Christopher Townsend work on?
Related documents: [0]  [DOC] Iron Man 3 (stylized onscreen as Iron Man Three) is a 2013 American superhero film based on the Marvel Comics character Iron Man, produced by Marvel Studios and distributed by Walt Disney Studios Motion Pictures. It is the sequel to 2008's "Iron Man" and 2010's "Iron Man 2", and the seventh film in the Marvel Cinematic Universe. Shane Black directed a screenplay he co-wrote with Drew Pearce, which uses concepts from the "Extremis" story arc by Warren Ellis. The film stars Robert Downey Jr., Gwyneth Paltrow, Don Cheadle, Guy Pearce, Rebecca Hall, Stephanie Szostak, James Badge Dale, Jon Favreau, and Ben Kingsley. In "Iron Man 3", Tony Stark deals with posttraumatic stress disorder caused by the events of "The Avengers", while investigating the reemergence of the Ten Rings, led by the mysterious Mandarin and comes into a conflict with an old enemy: Aldrich Killian. [END] 
[1]  [DOC] Christopher Townsend is a visual effects supervisor. He has worked in the visual effects industry for over 20 years. For over a decade, he was an artist and supervisor at Industrial Light and Magic, and in 2007 became a freelance visual effects supervisor. He worked on "Journey to the Center of the Earth", the first ever stereoscopic motion picture shot and released digitally, "Wolverine", "Ninja Assassin", "" and "". He was nominated for a BAFTA and an Academy Award for Best Visual Effects for his work on "Iron Man 3", oversaw nearly 3000 shots on "" and was the overall supervisor for "Guardians of the Galaxy Vol. 2". In 2015 he was given an Honorary Doctor of Arts degree by his alma mater, Coventry University. [END] 
Answer: 
Iron Man 3
Iron Man 3