There's a much larger version of this — around 7680 x 14976 and 25 MB — that I'm considering making a 24 x 36 poster out of. After getting linked on BoingBoing, I'm investigating getting this turned into a poster. If anyone has any advice on doing this, feel free to contact me.
P.S. Yes, the aspect ratio on the frames is slightly jacked up. That's Thumber's doing, not mine. If I could have kept it at the proper ratio, I seriously would have. Also, some people around the internets seem to think this image consists of every frame of the film. It's actually a frame grab every second — which actually sort of ties the move together if you ask me...
Update: I'm actually doing what I can to fix the aspect ratio right this second. A commenter on BoingBoing mentioned an updated version of Brendan Dawes' script that required a tweak or two to get running under the current version of Processing. Hopefully in a few hours, I'll have something a little nicer to work with.
Update, Part Deux: The Processing script didn't work as well as I'd hoped, so I went back to an updated version of Thumber that preserved aspect ratios. Its output can be found here.