Yeah I would say thats internal geometry we are seeing blocking part of the camera, although usually thats the whole camera, try rendering the same frame, and then move the camera a little to see if that effects it at all. The only other option is...which I doubt, just the way it looks, is reversed normals in the geometry can make weird appearances like that, though this is to blunt and sharp of a change to be that I think. Let us know what happens. Brian