Visible crew/equipment: In the scene after Patrick Bateman's second encounter with the detective in his office, we see Bateman having sex at Courtney's apartment. After he rolls off her, Bateman approaches the large, stand-up mirror in the bedroom. In the upper right hand corner of the mirror, a boom microphone can clearly be seen moving around to pick up Christian Bale's lines. The next time we get the same long shot, the microphone is gone. (00:52:45)
Visible crew/equipment: In the opening scene, the camera and camera man can be seen reflected in the knife.
Visible crew/equipment: In the office scene when Kimball is talking with Bateman, a microphone boom can be seen in the CD's reflection behind Bateman.
Visible crew/equipment: After the beginning of the movie where there is an aerial shot of New York City just before we see Patrick getting at his office, the filming helicopter can be briefly seen reflected on one of the buildings' glass on the left side of the screen while it films the scene. (00:07:13)
Visible crew/equipment: When Patrick is at the dry cleaners, and arguing with the owners, a woman called Victoria comes in and offers to get Patrick's clothes cleaned for him. Just before Patrick leaves he says "Oh boy, I've got to go. Thank you, Victoria" and you can see the boom microphone reflected in the glass door (just above Victoria's head). (00:14:17)