Blue Sky Studios, the CG company responsible for 'Robots,' 'Rio,' and the 'Ice Age' films is gearing up for their next animated adventure 'Epic.' The story centers on a little girl who finds herself in the middle of a battle between good and evil when she is shrunken to the size of a sprite. 'Epic' will feature the voice talents of Colin Farrell, Amanda Seyfried, and Beyonce Knowles. This new pos…