Washington, Dec 19 : Brad Pitt, who just turned 45, has been thinking about his life more than the usual, courtesy his role in "The Curious Case of Benjamin Button".

In the movie, which gained Pitt a Screen Actors Guild Award nod, he ages backwards with strange consequences.

And the actor has confessed that the film has forced him to think about his life.

"I was actually quite intrigued to see where it might be heading. I doubt time and gravity will be as kind as I was to myself," Usmagazine. com quoted him, as telling The Los Angeles Times.

"It just made me think about the ticking clock. Am I in mid-life? Am I halfway there? Do I have 10 years, five years?"

"And so what are those moments going to be that I do know I have, which is now?" he added. (ANI)