Fav Movie Scenes - Joker's interrogation (The Dark Knight)

At 3:16 there is an example of a canted angle shot.

 The canted angle, better known as
Dutch angle, is a camera shot where the camera is set at an angle on its roll
axis so the shot is composed with vertical lines at an angle to the side of the
frame. It is one of many techniques that are used to portray psychological
uneasiness in subject being filmed.