"We looked at a lot of hand models and the one we hired was this Tai Chi guy. He was this pretty heavy fat guy – a strange, scary guy who seemed kind of threatening when we were casting him. His hands seemed kind of elegant, but the funny thing was that David was upset with the choice. He said, 'Why did you cast that guy? His hands look absolutely nothing like Kevin Spacey’s hands.' If you look at Spacey’s hands, his fingers are long and thin, but this guy’s hands were kind of stumpy. Fincher was very dubious but I didn’t think anyone would notice, so we went ahead with him. He was a funny guy. [Seven cameraman] Harry Savides said at the end of the shoot, 'We have to do something to this guy.' So we made him take off his shirt and put Vaseline all over him and then we wrapped him in twine. We didn’t even use that shot, but we didn’t tell him that."

Seven is out now on Blu-ray for the first time