Epic (stylized as epic ) is a 2013 American 3D computer- animated action - adventure movie loosely based on William Joyce 's children's book The Leaf Men and the Brave Good Bugs . It was produced by Blue Sky Studios , written by William Joyce, James V. Hart, Daniel Shere, Tom J. Astle and Matt Ember and directed by Chris Wedge , the director of Ice Age (2002) and Robots (2005). The movie stars the voices of Colin Farrell , Josh Hutcherson , Amanda Seyfried , Christoph Waltz , Aziz Ansari , Chris O'Dowd , Pitbull , Jason Sudeikis , Steven Tyler and Beyonce Knowles . The film was released on May 24, 2013, by 20th Century Fox . Epic received mixed reviews from critics and earned $268 million on a $93 million budget.

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