Angelina Jolie says her sons Maddox and Pax watched her 'expressing a lot of pain' on the set of 'Maria.' She's also a mom to Zahara, Shiloh and twins Knox and Vivienne.

Angelina Jolie portrayed troubled opera singer Maria Callas in 'Maria,' and her sons witnessed her emotional transformation on set.

Angelina Jolie is notoriously private. But in a new interview with BBC News, the Hollywood star spoke candidly about her experience of working on set with her eldest sons, saying they saw "the pain" she usually hides from them.

Angelina Jolie loves seeing her children find their passions — and sometimes that’s on set (or in the theater) with her. Jolie shares sons Maddox (born August 2001) and Pax (born November 2003), daughters Zahara (born January 2005) and Shiloh (born May 2006),

While Angelina Jolie scored a legal win over their winery, her mood is reportedly so volatile that she's “lashing out at staff – and her kids!”