Julia Roberts America's Pissed-Off Sweetheart

11/29/2007 3:45 PM PST
Usually it's the paps who hunt celebs, but yesterday, Julia Roberts was on the chase in L.A., driving on the wrong side of the road as she went after a photog!

Once they stopped, an irate Julia got out of her car and gave the pap the George Clooney treatment, scolding him for trying to snap pics of her children. Roberts demanded that the photog turn his camera off -- and he nervously obliged.