Usually smoking hot Brad looked a little silly while taking a break from filming The Curious Case of Benjamin Button yesterday, but I suppose the wardrobe can't be held against him. He may be stuck working in Montreal while his kiddies and Angie are back in Prague, but it sounds like the family had a great time over the weekend celebrating Shiloh's birthday. There were balloons (thrilling stuff people)! It's no surprise they had a blast because according to Us, Brad can make a fun time just about anywhere. "One time, when the kids were bored, [Pitt] had them all throwing empty pizza boxes as Frisbees,” says a source. “Obviously, Shiloh was too young to join in, but you could hear her laughing.” Yup, just another glimpse into the life of the rich and famous.

More pics on the set so just read more