I am trying to find out what software that Richard Linklater used to animate over the dv footage in Waking Life and A Scanner Darkly. I have heard that Adobe After Effects can do it, and someone told me Motion might, but isn't designed for that. I am interested in doing a short in the same style and would like to find the software that Linklater used, since I have read that he did it on a G4.

I am pretty sure that the creators of Waking Life had there own sofeware made for that movie, I know that you can do it AE the preinstalled Effects might not have what you are looking for, but there are a lot of free effects you can download off the net... Good luck, and be patient Roto is very time consuming, also try the keyframe assistant sometimes you get lucky everyonce in awhile.

Do a search, there was a thread last week about it.

I missed the articles, but I also know that Animation:Master has ability to do this. The only thing is that you have to strip the audio before you import it. Not sure of what the final effect is, so it may or may not be the tool you want.