Brad Pitt is more concern of taking care of family than killing zombies

He acts a hero in his new movie, World War Z but nothing is more his concern than taking care of his family than zombies outbreak.

He said to  news.com.au., "The only thing that keeps me up at night is knowing is everyone safe. Are the kids safe, is mumma [Jolie] safe, is the house locked?"

"It totally informs the film."

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