Ichi the Killer (2001)

Visible crew/equipment: When Kakihara and Karen are walking up the stairs at the apartment building and the camera is following them, you can make out the shadow of the cameraman on the actors and the walls several times.

Kakihara: Listen, when you're giving pain to someone, don't think about the pain that person is feeling. Just concentrate on how good it feels to be causing someone pain. That's the best thing you can do for a true masochist.