Just got my first unstuck, multi-layer cel.  It 
came with a piece of plastic between the two 
layers, apparently to keep them unstuck.  Is 
there any problem with leaving this seperater 
there?  Also, it looks like the top layer was at 
one time stuck, and while no noticable damage was 
done to the top layer was pulled free, it did 
leave some paint behind.  Is there a good way to 
clean off this extra paint?

Thanks for any suggestions/recommendations!