The Hollywood superstars are planning to cement their relationship after 10 years together, and they have enlisted the help of their six kids, Maddox, Pax, Zahara, Shiloh, Knox and Vivienne.
However, Jolie admits she may have made a mistake as the youngsters' suggestions so far have been outlandish.
She tells People.com, "We are discussing it with the children and how they imagine it might be. Which is verging on hysterical, how kids envision a wedding.
"They will, in a way, be the wedding planners. It's going to be Disney or paintball - one or the other!"
Jolie and Pitt became engaged in 2012. They have not revealed when they plan to walk down the aisle, but sources suggest the ceremony will take place later this year (14).