X17 EXCLUSIVE - Angelina Jolie Brings The Twins To Visit Brad Pitt On Set

Angelina Jolie was snapped taking twins Vivienne and Knox to see Brad Pitt at the studio yesterday during his lunch break, and it looks like the hunky actor was in for a sweet surprise!

Angie and the twins only stayed for 30 minutes, and an X17 photog on the scene tells X17online exclusively:

"Angelina was totally hands-on. She didn't have a nanny with her -- she carried in Knox and then came back to the chauffeured car for Viv. Angie was in such a good mood and the kids seemed so happy. At one point, Vivienne pushed her blanket into her mom's mouth and Angelina just laughed and went along with it. She loves to play with the kids and has a really good sense of humor with them."

Awww!