 FAKE: In the scene with MJ in front of the spider cage, just prior  to Peter being bitten, a spider on a thread can be seen just over  Peters right shoulder in the medium shots, and directly underneath  the spot where he will be bitten. It disappears in the final cut  before closeup coverage begins. Notice also that the focus changes  on the background, indicating the use of different lenses or  different spikes for the shots used.