The difference between Pixar and Dreamworks? Pixar hires Patton Oswalt and Ed Asner to star in their films, Dreamworks hires Leonardo DiCaprio. One focuses on story, the other focuses on celebrity voices. You tell me which works better.

Leo is making his cartoon debut in Dreamworks' The Guardians (not to be confused with Zack Snyder's owl cartoon, The Guardians of Ga'hool), although what role he'll be playing hasn't been announced. But here are the possibilities: Santa Claus, The Easter Bunny, the Tooth Fairy, Jack Frost or The Sandman. These are the titular Guardians, the greatest heroes of all time who must team up to stop the bad guy Pitch from taking over the world by putting fear in the hearts of children everywhere.

OK, it sounds cute. It would be cuter if Leo was playing The Tooth Fairy - if it's good enough for The Rock, why not Leo? - but I suspect he'll be Jack Frost. No real reason, he just seems like a Jack Frost kinda guy. Unless he's playing Pitch.

The Guardians comes out just before the end of the world in 2012.