Pax and Dad

Brad Pitt and Angelina Jolie's son Pax got some special one-on-one time with dad on Sunday.

The World War Z star and his 9-year-old son were out and about in Sydney, where Brad was in town to promote his new flick.

The father of six has been all about World War Z lately, surprising audiences at screenings everywhere from Hoboken, N.J., to L.A. to London. Clearly, though, he's not letting a promotional blitz keep him from daddy duty.

In an interview with Esquire, the 49-year-old actor revealed that he couldn't be "any happier" with where his live has taken him, especially when it comes to his fiancé and children.

"I always thought that if I wanted to do a family, I wanted to do it big," he said. "I wanted there to be chaos in the house...There's constant chatter in our house, whether it's giggling or screaming or crying or banging. I love it. I love it. I love it. I hate it when they're gone. I hate it. Maybe it's nice to be in a hotel room for a day—'Oh, nice, I can finally read a paper.' But then, by the next day, I miss that cacophony, all that life."

So sweet. We're guessing Pax doesn't mind the occasional chance to have papa Brad all to himself, though!