Brad Bird, the man responsible for the underrated Iron Giant and Pixar hits The Incredibles and Ratatouille, is reportedly being considered as a potential director for Mission Impossible 4. The fourth film in America’s answer to James Bond (sorry Bourne, they got there first) is to see Tom Cruise return as special agent Ethan Hunt, while the last film’s director J.J Abrams will now be one of the producers.