Brad Pitt: I Made World War Z for My Sons

Brad Pitt said he decided to do World War Z for his sons Maddox, Knox, and Pax. Splash News

What a family man! Brad Pitt revealed that he decided to take on zombie epic World War Z as a way to connect with his three sons — Maddox, 11, Pax, 9, and Knox, 4.

"Four years ago I knew nothing about zombies but now I consider myself an expert," he told reporters at the CinemaCon convention on Monday, April 15, reports. "This whole thing started because I just wanted to do a film my boys could see before they turned 18, one they liked anyway and they loved zombies. So we settled on Max Brooks' book called World War Z."

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The 49-year-old actor is also father to three girls with longtime partner Angelina JolieZahara, 8, Shiloh, 6, and Knox's twin sister Vivienne, 4.

Pitt added that deciding to take on the film proved to be a challenge in two ways: "How do we keep the global spectacular dynamic scope of the book and how do we originate a zombie film that's been done quite often and really really well?" he asked as he introduced the film.

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"What you are about to see is our answer to those two questions," he continued. "We got a little carried away. I think you are going to like this as much as my boys are going to."

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