Brad Pitt limps around with a walking cane

CEBU, Philippines - He burst into the limelight 20 years ago wearing little more than a cowboy hat and a smile in the film Thelma & Louise.

Now one of Hollywood's most celebrated hunks is finally showing his age.

Dressed all in black, with a greying beard, the father-of-six was spotted leaving a Beverly Hills skin spa on Thursday with the aid of a walking stick.

According to JustJared.com the Ocean's Eleven star injured his leg. They quote a source who told them: 'He tore his MCL.' The 'MCL' is the medial collateral ligament and is one of four ligaments that stabilizes the knee.

It is not clear how the actor got the injury, but it didn't seem to sour his mood.

Brad had a smile on his face as he stepped inside his car, on the driver's side.

He may have another reason to be happy, as the Los Angeles Times has reported that the actor's upcoming film World War Z may become a franchise.

Meanwhile, Brad has received rave reviews for his performance in the baseball movie Moneyball.

The Academy Award nominations have yet to be announced but there is already Oscar buzz surrounding the film.