<P> For the HBO television film Wit (2001), however, Thompson happily took the lead role in what she felt was "one of the best scripts to have come out of America". Adapted from Margaret Edson's Pulitzer Prize winning play, it focusses on a self - sufficient Harvard University professor who finds her values challenged when she is diagnosed with ovarian cancer . Thompson was instrumental in bringing Mike Nichols to direct the project, and the pair spent months in rehearsal to get the complex character right . She was greatly drawn to the "daredevil" role, for which she had no qualms about shaving her head . Reviewing the performance, Roger Ebert was touched by "the way she struggles with every ounce of her humanity to keep her self - respect", and in 2008 he called it Thompson's finest work . Caryn James of The New York Times also described it as "one of her most brilliant performances", adding "we seem to be peering into a soul as embattled as its body ." The film earned Thompson nominations at the Golden Globes, Emmys and Screen Actors Guild Awards . </P> <P> Thompson's only credit of 2002 was a vocal performance in Disney's Treasure Planet, an adaptation of Treasure Island, where she voiced Captain Amelia . The animation earned far less than its large budget and was considered a "box office disaster". This failure was countered the following year by one of Thompson's biggest commercial successes, Richard Curtis's romantic comedy Love Actually . As part of an ensemble cast that included Liam Neeson, Keira Knightley, and Colin Firth, she played a middle - class wife who suspects her husband (played by Alan Rickman) of infidelity . The scene in which her stalwart character breaks down was described by one critic as "the best crying on screen ever", and in 2013, Thompson mentioned that she gets commended for this role more than any other . She explained, "I've had so much bloody practice at crying in a bedroom then having to go out and be cheerful, gathering up the pieces of my heart and putting them in a drawer ." Her performance received a BAFTA nomination for Best Supporting Actress . </P> <P> Thompson continued with supporting roles in the 2003 drama Imagining Argentina, where she played a dissident - journalist abducted by the country's 1970s dictatorial regime . Antonio Banderas played the husband who tries to find her, in a film that most critics disliked . The film was booed and jeered at when it was screened at the Venice Film Festival and received a scathing article in The Guardian . Thompson had greater success that year when she worked with HBO for a second time in the acclaimed miniseries Angels in America (2003). The show, also featuring Al Pacino and Meryl Streep, dealt with the AIDS epidemic in Reagan - era America . Thompson played three roles--a nurse, a homeless woman, and the title role of The Angel of America--and was again nominated for an Emmy Award . In 2004, she played the eccentric Divination teacher Sybill Trelawney in the third Harry Potter film, the Prisoner of Azkaban, her character described as a "hippy chick professor who teaches fortune - telling". She later reprised her role in the Order of the Phoenix (2007) and the Deathly Hallows--Part 2 (2011), and has called her time on the popular franchise "great fun". </P> <P> The year 2005 saw the release of a project Thompson had been working on for nine years . Loosely based on the Nurse Matilda stories that she read as a child, Thompson wrote the screenplay for the children's film Nanny McPhee--which centres on a mysterious, unsightly nanny who must discipline a group of children . She also took the lead role, alongside Colin Firth and Angela Lansbury, in what was a highly personal project . The film was a success, taking number one at the UK box office and earning $122 million worldwide . Commenting on Thompson's screenplay, film critic Claudia Puig wrote that its "well - worn storybook features are woven effectively into an appealing tale of youthful empowerment". The following year, Thompson appeared in the surreal American comedy--drama Stranger than Fiction, playing a novelist whose latest character (played by Will Ferrell) is a real person who hears her narration in his head . Reviews for the film were generally favourable . </P>

Who played professor sybil trelawney in harry potter
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