So this picture is when Snape is about to AK Dumbledore. Sniff!! :(((
If I would be in charge of the continuity between shots, I would certainly get fired -- Dumbledore's robes are completely different from the ones he was wearing in the other drawings of the same sequence. :)
Warning: Wacky architecture.
Edit: the picture is big and I de-resed it a lot. If it's too hard to see, let me know, and I'll post a link to a higher res version.
Edit #2: so here's the link to a higher-res version (527k)
http://photobucket.com/albums/y18/caladan-atreides/?action=view¤t=snape-dd-highres.jpg