Cooper and De Niro recently did a reading of the script by Paul Haggis.
A new interview with the director reveals The Hangover 2 is stopping the actor from appearing in the film.
It seems The Last Airbender director has the trio of actors loosely attached to his new film.
Disney picks up Allan Loeb's untitled baseball pitch.
Zach Galifianakis, Bradley Cooper, and Ed Helms agree to return for The Hangover 2.