4TH UPDATE 5:30 PM …Refresh for latest: More photos:

EXCLUSIVE… 3RD UPDATE 2:10 PM: Nikki Finke just learned that WME was responsible for today’s “CAAN’T” ad attack against rival CAA. The William Morris Endeavor agency will not comment publicly. But an insider just broke silence and told Finke: “We thought it was funny. So we put it up. Someone did a logo here and arranged for the ads to go up around town, not just in Century City Mall but in other strategic places. We also arranged for someone to wear a “CAAN’T” T-shirt on this morning’s Today Show. Everyone takes themselves too seriously. Have some humor.” When the story first broke, Deadline contacted rival agencies around town to see if they were responsible. All denied they had anything to do with the campaign except WME which did not return repeated calls. Besides the mall, the ads were posted in areas of La Brea and Santa Monica, according to eyewitnesses. Wearing the “CAAN’T” T-shirt on the Today Show was a busty brunette who drew maximum attention. Meanwhile, David O. Russell has denied to Deadline that he was the director described in the New York Post blind item on Page Six. Meanwhile, all attempts to pull down the “CAAN’T” ads at Century Mall have ended.

2ND UPDATE 1:30 PM: A JC Decaux rep is at Century City Mall and management told Deadline’s Jen Yamato that the company received word to take down the ads. Looks like mall management and security is starting with the most prominent one displayed in the Food Court during lunchtime. However, a half hour later they’ve had difficulty removing it possibly because it’s a scrolling ad and not just a standard poster. From what she can see, attempts have halted.

UPDATE 12:45 PM: Deadline is told that the ad agency JC Decaux sold the ads and is now “working with” Century City Mall security and management to take down the placards.