Anime Space Jam.

Yeah, [i]that's right[/i] -- you fucking heard me.

Basically, some Japanese (or a western person for a completely different dynamic) live action schmuck gets thrown into an anime world - which may or may not be a previously existent licenced work, but will be one in his/her own universe - and he/she essentially has to deal with life in that universe while those in that universe have to deal with the fact that in his/her world they're just an animated series.

I had another idea I wanted to pitch, but I'm too busy to word it.