Angelina Jolie 1st became personally aware of worldwide humanitarian crises while filming Tomb Raider in Cambodia. Angelina Jolie eventually turned to UNHCR for more information on international trouble spots.

In the following months Angelina Jolie visited refugee camps around the world to learn more about the situation and the conditions in these areas. In February 2001, Angelina Jolie went on her 1st field visit, an 18-day mission to Sierra Leone and Tanzania; Angelina Jolie later expressed her shock at what she had witnessed.

In the coming months Angelina Jolie returned to Cambodia for two weeks and later met with Afghan refugees in Pakistan where she donated $1 million for Afghan refugees in response to an international UNHCR emergency appeal.

Angelina Jolie insisted on covering all costs related to her missions and shared the same rudimentary working and living conditions as UNHCR field staff on all of her visits. Angelina Jolie was named a UNHCR Goodwill Ambassador on August 27, 2001 at UNHCR headquarters in Geneva.

in 2006 Angelina Jolie appeared in Robert De Niro"s The Good Shepherd.

Robert De Niro"s The Good Shepherd is a film about the early history of the CIA, as seen through the eyes of Edward Wilson, played by Matt Damon. Angelina Jolie played the supporting role of Margaret Russell, Wilson"s neglected wife.

According to the Chicago Tribune, "(Angelina) Jolie ages convincingly throughout, and is blithely unconcerned with how her brittle character is coming off in terms of audience sympathy."

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In 2008 Angelina Jolie played Christine Collins, the lead in Clint Eastwood"s drama Changeling.

Drama Changeling had its premiere at the Cannes Film Festival. Drama Changeling is based on the true story of a woman in 1928 Los Angeles who is reunited with her kidnapped son—only to realize he is an impostor.

Angelina Jolie received her second Academy Award nomination, and also was nominated for a BAFTA Award, a Golden Globe Award, and the Screen Actors Guild Award.

The Chicago Tribune noted, "(Angelina) Jolie really shines in the calm before the storm, the scenes [...] when one patronizing male authority figure after another belittles her at their peril."

Angelina Jolie returned to film as Gloria McNeary in the 1998 gangster movie Hell"s Kitchen, and later that year appeared in Playing by Heart, part of an ensemble cast that included Sean Connery, Gillian Anderson, Ryan Phillippe and Jon Stewart.

The film received predominantly positive reviews and Angelina Jolie was praised in particular. The San Francisco Chronicle wrote, "Jolie, working through an overwritten part, is a sensation as the desperate club crawler learning truths about what she"s willing to gamble." She won the Breakthrough Performance Award by the National Board of Review.