By Breaking Celebrity News Staff

Chastity Bono's decision to undergo a sex change and become a man has been turned into a documentary, and no one is prouder of the story than his mother Cher.

The legendary performer and Chaz held a private screening of the film, Becoming Chaz, at her home over the weekend. A friend of the singer told People she addressed the intimate group saying, "I admire my son Chaz's courage for sharing his personal journey. Most important