Brad Pitt and Angelina Jolie were greeted by a crowd of fans upon their arrival at the Japan airport on Sunday.

The pair, who landed in Haneda International Airport for work obligations, was accompanied by three of their children: Pax, 9, and their 5-year-old twins Vivienne and Knox.

Wearing black from head-to-toe and flashing a smile, the actress made sure to sign autographs for the excited fans. She held Vivienne's hand and also shared a laugh with Pax, who seemed to have some trouble with his flip-flop. Pitt walked ahead, holding Knox's hand.

On Monday, Jolie also held a Japanese screening of 2011's In the Land of Blood and Honey, her film which she hopes will make people aware of sexual violence in war zones. It's also the first movie that she has written and directed. 

"When I started down the road, making this film, I thought only of telling a story and doing my best to try to give a voice to survivors," she said at the screening, according to The New York Daily News. "But today I am here not only as a director, but as a campaigner, and a part of a global effort that is growing every day."

"This is just a beginning," she added. "Our aim must be to shatter impunity, so that rape can no longer be used as a weapon of war anywhere in the world as it was in Bosnia, and as it is today from Congo to Syria."

While in Japan Jolie also supported her fiancé at the Japanese premiere of his latest film, World War Z. The 38-year-old wore a full-length black gown while Pitt sported pants and a dress shirt of the same color.

'World War Z' Opening Weekend Sales

The 40-year-old has excessively promoted his movie, which opened in U.S. theaters on June 21. His commitment has paid off since it's his greatest box office opening to date. It grossed $66 million in U.S. theaters during its opening weekend.