I have no idea where this came from, but it makes me happy.
Thanks to our new pal, mogadonia, I can now link to the original entry that has even more wiggles. Thank you!
The actual movie is Devil Girl From Mars, but the animation itself is from the very wonderful darkstarpilot community on livejournal. It's like the film_stills community on LJ, but each post is a sci-fi movie accompanied by a series of animated gifs captured from it. Simple but effective idea, much like threeframes.net as mentioned above.
DRAK STAR - DEVIL GIRL FROM MARS 1954