George Clooney: Running Man

Logging the long hours at work, George Clooney was busy filming scenes on the set of "The Descendants" in Oahu, Hawaii on Wednesday (March 17).

Showing that he still has a little spryness at the age of 48, the "Up In the Air" stud donned a blue polo with shorts as he sprinted along the streets while cameras captured his each and every move.

Due out in 2011, Clooney's new flick is being directed by Alexander Payne and co-stars a cast including Beau Bridges, Shailene Woodley and Judy Greer.

As for the movie's plot, a synopsis via IMDB tells: "A land baron tries to re-connect with his two daughters after his wife suffers a boating accident."

Enjoy the pictures of George Clooney on the set in Oahu (March 17).