Although Christian Bale performed many of his own stunts, he wasn't allowed anywhere near the Batmobile.
Christian Bale's active dislike of his uncomfortable Batman outfit helped his performance as the Dark Knight as he was perpetually in a foul mood when wearing it.
Christian Bale revealed in interviews in 2009 that in his first scene with Sir Michael Caine and Morgan Freeman (one involving Bale waking up in bed to find them waiting there), he fell asleep after getting ready for the scene. Bale described waking up to find Caine poking him in the ribs, saying "Look at that! He's bloody fallen asleep."
Writer and director Sir Christopher Nolan decided that there would be no second unit, and so for the whole 129 shooting days, Nolan oversaw every shot of the movie personally.
Writer and director Sir Christopher Nolan is reputed to have been so fascinated with Cillian Murphy's bright blue eyes that he kept trying to find reasons and ways to have Crane remove his glasses.
John Nolan: (at around 1h 45 mins) the uncle of Sir Christopher Nolan plays the birthday party guest who tells Bruce Wayne that "the apple has fallen very far from the tree."
Lucy Russell: (at around 1h 9 mins) the female lead from Following (1998), writer and director Sir Christopher Nolan's first movie, plays a guest in the restaurant, and has the second most lines of any female in the movie, second only to Katie Holmes (Rachel Dawes).
Jeremy Theobald: (at around 2h) The male lead from Following (1998), Sir Christopher Nolan's first movie, played the younger of the two Gotham Water Board Technicians.