I chose 'Mr. & Mrs. Smith' specifically 'cause I had just made 'The Bourne Identity' and made a film that glamorized being an action hero, and I wanted to make the exact opposite. I wanted to make a movie that glamorized maintaining a marriage, and that made the action hero part seem easy and made the marriage part seem hard.
In 'The Bourne Identity,' I wanted to give the audience the feeling of being in the car with Jason Bourne, not just watching him drive but be in the car with him, and 'The Wall' is the continuation of that immersive filmmaking style. Where you're trapped behind the wall with Aaron Taylor-Johnson - for better or worse, you're trapped there with him.