Speaking with three of the main actors in The Angry Birds Movie this past week, we happened upon a realization of sorts. This movie is packed with well-known actors of all sorts - most of whom have done both live-action acting and animation (voice) work as well. This is a film where an actor would be forgiven for forgetting the entire cast list of fellow actors - especially if they had no scenes with them in the same studio. In fact with so few lines in the film, it's not out of the question to assume that Sean Penn didn't spend nearly as much time in the recording booth as the rest of the cast. As such, it's easy to forget he was there at all.