Proud parents Angelina Jolie and Brad Pitt celebrated their adopted son MADDOX's fifth birthday last week (05AUG06) with their families and the youngster's school friends. American magazine Life + Style reports the Fight Club actor's parents BILL and JANE flew in two days early for the birthday bash at the couple's home in Santa Barbara. Other guests included Jolie's French actress mother MARCHELINE BERTRAND, and Pitt's siblings DOUG and JULIE, and 12 of Maddox's little pals. Maddox received a mountain of gifts to mark the special day, including a mini-dune buggy from his loving adoptive parents.