Angelina Jolie reportedly offended Brad Pitt's mother by drinking at son Maddox's fifth birthday party. Brad's family flew in from their hometown in Missouri to visit granddaughter Shiloh Nouvel but allegedly left early because they were unhappy with her behavior at the party. Angelina is said to have barely acknowledged Brad's family and upset his mom, Jane, by having an open bar at the bash.

Neither of Brad's parents drink and they didn't approve of Angelina drinking around her and Brad's children and the other youngsters at the party. A source told America's Star magazine: "They were the only ones not drinking and it was uncomfortable for them. To Jane, drinking is unhealthy, and she thought Angelina was intoxicated.

"Things were very tense that weekend, and they left with an even worse impression of Angelina than before. They think she is tactless and doesn't consider other peoples feelings."

The Pitt family allegedly cut their trip short after just two days, leaving on the day of the party.