 When looking for the part of Victor, David Fincher (qv) stated  that he wanted to find someone who was incredibly skinny, around 80  lbs. Michael Reid MacKay (qv) auditioned, and at the time weighed  85 lbs. Fincher gave him the part and jokingly told him to lose some  more weight. Much to his surprise, MacKay turned up to filming  having lost another 5 lbs.