02/01/2007 AT 12:00 PM EST
Strolling the red carpet at the Golden Globes on Jan. 15, Angelina Jolie looked as glamorous as ever, supporting her nominated boyfriend Brad Pitt. But it was evident from her unusually withdrawn manner that her heart wasn't in it. "She was clearly not happy to be there," says an observer. "Brad was rolling with it, but she seemed hesitant. There was something off – and it was obvious."