The zombie action movie has become Pitt's highest-grossing movie of all time, taking in a global total of over USD 500 million, reported Digital Spy.
"We're certainly talking about it, yeah. We have so many ideas on the table from just the time we spent developing this thing and figuring out how zombie worlds work.
"We have so many ideas and so much information, we think we have a lot of stuff to mine from. We're going to do our best and see what we get out of it. We gotta get the script right first to determine if we go further," Pitt said.
"World War Z" was originally intended to become a trilogy, but after the film required several re-shoots the idea was abandoned.