I remember that some guys had a computer and a webcam in the Emerging Technologies floor at SIGGRAPH, and they would somehow turn what the webcam saw into a cartoon-like image... pretty much like what they did for this movie... the interesting part is that they did it in real time O_O

nemirc
Renderosity Magazine Staff Writer
https://renderositymagazine.com/users/nemirc
https://about.me/aris3d/