Angelina Jolie was spotted at Vietnam airport comforting her son Pax who looked sad and somber leaving his home country after a 5-day trip.

Brad Pitt and Jolie arrived in Vietnam's Con Dao on Friday with their six children. It was Pax's first visit to his home country in four years, since being adopted by the Jolie-Pitts from an orphanage in Ho Chi Minh City in 2007.

The couple toured the Can Dao Island, visiting a prison where political figures were tortured and mutilated in the 60's. Although the children were spared of the prison tour, the celebrity couple has expressed the importance of teaching their adoptive children about one another's cultures.

They are all learning about each other's cultures as well as being proud of their own. They all have their flags over their beds and their individual pride, Jolie said, the Sun reported.

Photos taken of Angelina Jolie on the trip showed the actress looking thin and gaunt raising concerns about her health. Her sleeveless dress exposed her skeletal arms and exposed her veins, which comes as a stark contrast to her curvy figure in 2008 when she played Lara Croft in Tomb Raider.

Meanwhile, Brad Pitt has revealed that he will quit acting in three years when he turns 50. He told Australia's 60 Minutes, that he is enjoying the producing side and development of stories and putting those pieces together. Getting stories to the plate that might have had a tougher times otherwise.

When asked if he was happy he answered, I think happiness is overrated, truthfully. I do, he says. I think sometimes you're happy, sometimes you're not. There's too much pressure to be happy. I don't know. I don't really give a sh--. I know I will be at times and I know I won't be at times. Satisfied, at peace, those would be more goals for myself.