Jolie has had a lifelong dysfunctional relationship with her father, which began when Voight left the family when his daughter was less than a year old. She has said that from then on their time together was sporadic and usually carried out in front of the press. They reconciled when they appeared together in Lara Croft: Tomb Raider (2001), but their relationship again deteriorated. Jolie petitioned the court to legally remove her surname "Voight" in favor of her middle name, which she had long used as a stage name; the name change was granted on September 12, 2002. Voight then went public with their estrangement during an appearance on Access Hollywood, in which he claimed Jolie had "serious mental problems." At that point, her mother and brother also broke off contact with Voight. They did not speak for six and a half years, but began rebuilding their relationship in the wake of Bertrand's death from ovarian cancer on January 27, 2007, before going public with their reconciliation three years later.
Jolie next starred opposite Antonio Banderas as his mail-order bride in Original Sin (2001), the first of a string of films that were poorly received by critics and audiences alike. The New York Times critic Elvis Mitchell questioned Jolie's decision to follow her Oscar-winning performance with "soft-core nonsense." The romantic comedy Life or Something Like It (2002), though equally unsuccessful, marked an unusual choice for Jolie. Salon magazine's Allen Barra considered her ambitious newscaster character a rare attempt at playing a conventional women's role, noting that her performance "doesn't get off the ground until a scene where she goes punk and leads a group of striking bus workers in singing 'Satisfaction'". Despite her lack of box office success, Jolie remained in demand as an actress; in 2002, she established herself among Hollywood's highest-paid actresses, earning $10–$15 million per film for the next five years.
Over the next decade, she went on more than 40 field missions, meeting with refugees and internally displaced persons in over 30 countries. In 2002, when asked what she hoped to accomplish, she stated, "Awareness of the plight of these people. I think they should be commended for what they have survived, not looked down upon." To that end, her 2001–02 field visits were chronicled in her book Notes from My Travels, which was published in October 2003 in conjunction with the release of her humanitarian drama Beyond Borders.
Jolie has received wide recognition for her humanitarian work. In August 2002, she received the inaugural Humanitarian Award from the Church World Service's Immigration and Refugee Program, and in October 2003, she was the first recipient of the Citizen of the World Award by the United Nations Correspondents Association. She was awarded the Global Humanitarian Award by the UNA-USA in October 2005, and she received the Freedom Award from the International Rescue Committee in November 2007. In October 2011, UN High Commissioner for Refugees António Guterres presented Jolie with a gold pin reserved for the most long-serving staff, in recognition of her decade as a UNHCR Goodwill Ambassador.
On March 10, 2002, Jolie adopted her first child, seven-month-old Maddox Chivan, from an orphanage in Battambang, Cambodia. He was born as Rath Vibol on August 5, 2001, in a local village. After twice visiting Cambodia, while filming Lara Croft: Tomb Raider (2001) and on a UNHCR field mission, Jolie returned in November 2001 with her husband, Billy Bob Thornton, where they met Maddox and subsequently applied to adopt him. The adoption process was halted the following month when the U.S. government banned adoptions from Cambodia amid allegations of child trafficking. Although Jolie's adoption facilitator was later convicted of visa fraud and money laundering, her adoption of Maddox was deemed lawful. Once the process was finalized, she took custody of him in Namibia, where she was filming Beyond Borders (2003). Jolie and Thornton announced the adoption together, but she adopted Maddox alone, and raised him as a single parent following their separation three months later.
Beyond her career, Jolie's appearance has been credited with influencing popular culture at large. In 2002, AfterEllen founder Sarah Warn observed that many women of all sexual orientations had publicly expressed their attraction to Jolie, which she considered a new development in American culture, adding that "there are many beautiful women in Hollywood, and few generate the same kind of overwhelming interest across genders and sexual orientations that she does". Jolie's physical attributes became highly sought-after among western women seeking cosmetic surgery; by 2007, she was considered "the gold standard of beauty", with her full lips remaining the most imitated celebrity feature well into the 2010s. After a 2011 repeat survey by Allure found that Jolie most represented the American beauty ideal, compared to model Christie Brinkley in 1991, writer Elizabeth Angell credited society with having "branched out beyond the Barbie-doll ideal and embraced something quite different". In 2013, Jeffrey Kluger of Time agreed that Jolie has for many years symbolized the feminine ideal, and opined that her frank discussion of her double mastectomy redefined beauty.