These clips have cropped up in a couple of different places:
Clip #1 from Shhh!, the short film from Animidas on Vimeo.
Clip #2 from Shhh!, the short film from Animidas on Vimeo.
Jason's Sshhhh! is being adapted into a short film by Norwegian animators Animidas (with the slightly shortened title Shhh!). Follow the progress of the production and see lots more stills at the official Shhh! blog.
