hi, i have a polaroid 635 cl supercolor camera, and i took 3 photos last night but then all of it gave out blank photos with green spots on the side. i dont understand why that is. is it because of the camera? (it is an old one) or is it the film? i used the PX70 Color Shade films from theimpossibleproject.com... i hope someone can help me with this problem. thanks!