Another tricky case for you SecretSquirrel:
"A Scanner Darkly" (
http://en.wikipedia.org/wiki/A_Scanner_Darkly_(film))
Generated from source material that was filmed with live actors, then fed into Rotoshop and animated after that. And it looks very much like anime!
I'm also wondering... what about stopmotion / clay-animation creations, like Wallace & Gromit, Chicken Run, ...