Nintendo.  Yeah, really–a source told OK! Magazine that the tad-too-slim actress that she stays fit with video games.

Angie’s eldest son Maddox, 7, was showing Angelina - who also has her hands full with Pax, 4, Zahara, 3, Shiloh, 2, and 4-month-old twins, Knox and Vivienne - the games for their Nintendo DS online when they discovered Let’s Pilates!.

I’m sure her kids help her with keeping her slim figure more than Nintendo Pilates.  Oh, and having a personal trainer kinda helps, too.  Read more about Angelina’s fitness regimen at The Blemish.