its not realy a cartoon, but it has cartoon charicters in it, and they switch back and forth between cartoons and regular people, but the movie fat albert... the girl in its wearing a hoodie that says 420... umm there are alot, but i cant think of any... in the namba eppisode of south park, when they are running around threw all of the doors,(were they do that thing that they do on scooby DOOBIE doo) i think theres a door sign that says 420... and in the movie shrek 2, at the far far away idol, the stage back ground is a great big leaf that looks simlar to a pot leaf....