Pitt moved by visit to son's native Cambodia

Brad Pitt and Angelina Jolie are stepping up efforts to aid people in need in their son's home country of Cambodia.

The celebrity couple visited the homeland of their son Maddox, five, in November and are working to expand the scope of the Maddox Jolie-Pitt project (MJP), which Jolie launched more than four years ago as a conservation initiative.