December 7, 2011- 'That Sugar Ray Robinson scene [...] was based on the shower sequence from Psycho. [...] A glove coming into a frame is different from a knife. So in the process of trying to make the glove have a similar effect to the knife, the use of undercranking and overcranking and other technique came into the play. Unpredictable things happen when you're doing that. In this case, the glove has a certain amount of light on it, and there are sprays of water and sweat flying. It created things in the frame I just didn't expect. One frame of light cuts better to another frame of light. That sort of thing.'
Exerpt from Conversations with Scorsese by Richard Schickel © Knopff 2011.