SPOILER: In the director's cut, there is additional footage showing that the hooker John meets at the automat has a daughter. When Emma and Inspector Bumstead go to the hooker's apartment, Emma finds the daughter under a bed with a drawing showing the Strangers killing her mother.
The director's cut omits the opening monologue.
The DVD release is slightly longer than the one on video, with more footage towards the end of the film. There are more scenes of the duel between Murdoch and Mr. Book (the scene with the lightening and huge spikes) as well as both of them ascending into the air to continue their battle. A few scenes later, when Emma gets on the bus, there is an additional shot of the bus driving away.