Desperaux - Chomet's film or not?

Wow... Triplets of Belleville director (Sylvain Chomet) claims that much of the film is his, yet his name is not on it. He's suing Universal, not for money, but for acknowledgment.

http://www.nytimes.com/2008/09/27/movies/27movi.html?_r=2&scp=1&sq=despereaux&st=cse&oref=slogin&oref=slogin