Rock legend Steven Tyler has reportedly been cast alongside R&B stars Beyonce and Pitbull in a new animated film titled "Epic," a "Tron-like" story about a young girl transported to an alternate universe which she must save in order to save and return to the real world.  A 20th Century Fox vehicle, the film will also star Jason Sudeikis, Aziz Anzari, Colin Farrel, and Amanda Seyfried as the lead character.