11-year-old says Warner Bros. kept contest winnings. (Law).

DOUGLAS Gray might be forgiven if he feels a little like Sylvester the cat.

The 11-year-old from Wasilla, Alaska, thinking he had nabbed a prize in a Warner Bros.-sponsored contest, found his claim denied. But like Sylvester's relentless pursuit to gobble up Tweety, Gray isn't giving up on his claim. Instead, his mother is taking Warner Bros. to court.

In the suit, filed June 12 in Los Angeles Superior Court, Kari Gray claimed that Douglas was denied a Chevy van he won as part of the online "Toon Marooned AdVenture Sweepstakes.".

Warner Bros., according to the suit, denied her son's entry because he was younger than 18 -- though the rules state that, "If the prize is won by a minor, it will be awarded in the minor's name to his/her parent or legal guardian who must sign all required documents.

The action named Warner Bros. Online, which offered the contest on looneytunes.com, a site that includes message boards and streaming cartoons aimed at children. Also named was its parent company, AOL Time Warner Inc.

Warner Bros. spokeswoman Barbara Brogliatti said the company would not comment on pending litigation.

Gray is asking for damages and $31,410, the approximate retail value of the 2001 Chevy Venture Warner Bros. Edition van, according to the suit.

Staff reporter Amanda Bronstad can be reached at [phone] ext. 225, or at [e-mail].

Staff reporter Amanda Bronstad can be reached at [phone] ext. 225, or at [e-mail]