For those interested in playing with the puppets, I’ve put the clean backplate in my master clips folder, and here’s a direct link to the clip: https://drive.google.com/drive/folders/1geT4mYlgOu8wHf1j1tSzMiOIFOYnONvC
There’s a prores backplate and a prores 4444 of the front bottom of the stage with an alpha channel, with the idea that you can place puppets between the two layers.
I didn’t change the timing. I tried After Effects frame interpolation, but it really didn’t like the the dust in the foreground and got very wonky. Regular frameblending looked just okay (the alien moves a bit too much for it). If someone has twixtor or another interpolation software they’re welcome to try, as I think stretching an extra second or two out of the shot will be helpful!