I have a very interesting question.  I went to an 
american animation store the other day and was talking 
with the owner.  Apparently american cartoons that are 
made via CG don't have any sketches that are made or 
used.  So no "genga" if you will.  How come japanese 
make genga for CG and americans don't?  I guess I'm 
surprised there are genga at all when the animation is 
supposed to be computer generated.  I remember 
watching how they made the movie "Anastasia" and 
there was NO drawing on paper involved.  It was done 
on screen.  Why the difference?  Any ideas?  The 
owner of the store was shocked to learn that japanese 
CG has "genga"....sketches.  I showed him some and 
he was in awe.  Just curious if y'all knew anything about 
this :)