Brad Pitt and Angelina Jolie's twins, who celebrated their first birthday on July 12, have reached a major milestone.

"The twins are great. They're walking," Angelina told Life & Style at last night's LA premiere of Brad's new movie, Inglorious Basterds.

Angelina, who wore a sexy black leather dress and was smiling from ear to ear as she walked the red carpet alongside Brad, couldn't help but brag about her beautiful children. "I hope to get all of my kids involved [in humanitarian efforts]. I hope to raise them properly so that they have a good conscience, and they're good people."

And what about expanding the Jolie-Pitt clan? "Angelina laughed off questions about whether she planned to have more children," says Life & Style's reporter.

For more on Brad and Angelina, check out the new issue of Life & Style, on newsstands tomorrow!

Photo Credit: Landov