Angelina's date with Billy Bob

Angelina Jolie has upset Brad Pitt after she refused to cancel a date with ex-husband, Billy Bob Thornton at the Berlin Film Festival.
Angelina was in contact with Billy to congratulate him on his film but, as one thing lead to another, she ended up asking if they could meet up. The pair then began "talking on the phone and emailing behind Brad's back."
 Brad was further hurt when Angelina admitted she was excited to catch up with her ex flame.