Question: What character did Pam Ferris play in the film based on a J.K Rowling novel?

full_context: Document 1: Harry Potter and the Half-Blood Prince (film): Harry Potter and the Half-Blood Prince is a 2009 British-American fantasy film directed by David Yates and distributed by Warner Bros. Pictures. It is based on the novel of the same name by J. K. Rowling. The film, which is the sixth instalment in the "Harry Potter" film series, was written by Steve Kloves and produced by David Heyman and David Barron. The story follows Harry Potter's sixth year at Hogwarts as he receives a mysterious textbook, falls in love, and attempts to retrieve a memory that holds the key to Lord Voldemort's downfall.
Document 2: Geraldine Somerville: Geraldine Margaret Agnew-Somerville (born 19 May 1967) is an Irish born actress known for her role as Detective Sergeant Jane Penhaligon in "Cracker" (1993–95), for which she was nominated for the 1995 BAFTA TV Award for Best Actress, and for playing Lily Potter in the "Harry Potter" film series. Her other film appearances include "Gosford Park" (2001), "My Week with Marilyn" (2011) and "Grace of Monaco" (2014).
Document 3: Harry Potter and the Goblet of Fire (film): Harry Potter and the Goblet of Fire is a 2005 British-American fantasy film directed by Mike Newell and distributed by Warner Bros. Pictures. It is based on the novel of the same name by J. K. Rowling. The film, which is the fourth instalment in the "Harry Potter" film series, was written by Steve Kloves and produced by David Heyman. The story follows Harry Potter's fourth year at Hogwarts as he is chosen by the Goblet of Fire to compete in the Triwizard Tournament.
Document 4: Harry Potter and the Prisoner of Azkaban: Harry Potter and the Prisoner of Azkaban is the third novel in the "Harry Potter" series, written by J. K. Rowling. The book follows Harry Potter, a young wizard, in his third year at Hogwarts School of Witchcraft and Wizardry. Along with friends Ronald Weasley and Hermione Granger, Harry investigates Sirius Black, an escaped prisoner from Azkaban who they believe is one of Lord Voldemort's old allies.
Document 5: Harry Potter and the Chamber of Secrets (film): Harry Potter and the Chamber of Secrets is a 2002 British-American fantasy film directed by Chris Columbus and distributed by Warner Bros. Pictures. It is based on the novel of the same name by J. K. Rowling. The film is the second instalment in the long-running "Harry Potter" film series. It was written by Steve Kloves and produced by David Heyman. Its story follows Harry Potter's second year at Hogwarts School of Witchcraft and Wizardry as the Heir of Salazar Slytherin opens the Chamber of Secrets, unleashing a monster that petrifies the school's denizens. The film stars Daniel Radcliffe as Harry Potter, with Rupert Grint as Ron Weasley, and Emma Watson as Hermione Granger. The film is also the last film to feature Richard Harris as Professor Albus Dumbledore, due to his death that same year.
Document 6: Fiona Shaw: Fiona Shaw, CBE (born Fiona Mary Wilson; 10 July 1958) is an Irish actress and theatre and opera director, known for her role as Petunia Dursley in the "Harry Potter" films and her role as Marnie Stonebrook in season four of the HBO series "True Blood" (2011). She has worked extensively with the Royal Shakespeare Company and the National Theatre, twice winning the Olivier Award for Best Actress; for various roles including "Electra" in 1990, and for "Machinal" in 1994. She won the 1997 Drama Desk Award for Outstanding Solo Performance for "The Waste Land". Her other stage work includes playing the title role in "Medea", both in the West End and on Broadway (2001–02). She was awarded an Honorary CBE in 2001.
Document 7: Miriam Margolyes: Miriam Margolyes, {'1': ", '2': ", '3': ", '4': "} ( ; born 18 May 1941) is an English character actress and voice artist. Her earliest roles were in theatre and after several supporting roles in film and television she won a BAFTA Award for her role in "The Age of Innocence" (1993) and went on to take the role of Professor Sprout in the "Harry Potter" film series.
Document 8: Harry Potter and the Deathly Hallows – Part 1: Harry Potter and the Deathly Hallows – Part 1 is a 2010 British-American fantasy film directed by David Yates and distributed by Warner Bros. Pictures. It is the first of two cinematic parts based on the novel of the same name by J. K. Rowling and features an ensemble cast. The film, which is the seventh and penultimate installment in the "Harry Potter" film series, was written by Steve Kloves and produced by David Heyman, David Barron, and Rowling.
Document 9: Harry Potter and the Philosopher's Stone (film): Harry Potter and the Philosopher's Stone (released in some countries as Harry Potter and the Sorcerer's Stone) is a 2001 British-American fantasy film directed by Chris Columbus and distributed by Warner Bros. Pictures. It is based on the novel of the same name by J. K. Rowling. The film is the first instalment in the long-running "Harry Potter" film series, and was written by Steve Kloves and produced by David Heyman. Its story follows Harry Potter's first year at Hogwarts School of Witchcraft and Wizardry as he discovers that he is a famous wizard and begins his education. The film stars Daniel Radcliffe as Harry Potter, with Rupert Grint as Ron Weasley, and Emma Watson as Hermione Granger.
Document 10: Mara Wilson: Mara Elizabeth Wilson (born July 24, 1987) is an American author and former child actress. She is known for playing Natalie Hillard in "Mrs. Doubtfire" (1993), Susan Walker in "Miracle on 34th Street" (1994), and Matilda Wormwood in "Matilda" (1996). Since retiring from film acting, Wilson has focused on writing.
Document 11: Pamela Franklin: Pamela Franklin (born 3 February 1950) is a British actress who appeared in feature films from 1961 until 1976, and on American television throughout the 1970s. She is best known for her role in "The Prime of Miss Jean Brodie" (1969), for which she won the National Board of Review award for Best Supporting Actress.
Document 12: Dawn French: Dawn Roma French (born 11 October 1957) is an English actress, writer, and comedian. She is best known for starring in and writing for the comedy sketch show "French and Saunders" with comedy partner Jennifer Saunders and for playing the lead role as Geraldine Granger in the sitcom "The Vicar of Dibley". French has been nominated for seven British Academy Television Awards and also won a BAFTA Fellowship with Jennifer Saunders.
Document 13: Harry Potter and the Prisoner of Azkaban (film): Harry Potter and the Prisoner of Azkaban is a 2004 British-American fantasy film directed by Alfonso Cuarón and distributed by Warner Bros. Pictures. It is based on the novel of the same name by J. K. Rowling. The film, which is the third instalment in the "Harry Potter" film series, was written by Steve Kloves and produced by Chris Columbus (director of the first two instalments), David Heyman, and Mark Radcliffe. The story follows Harry Potter's third year at Hogwarts as he is informed that a prisoner named Sirius Black has escaped from Azkaban intending to kill him.
Document 14: Matilda Wormwood: Matilda Wormwood, also known by her adoptive name Matilda Honey, is the title character and protagonist of the bestselling children's novel "Matilda" by Roald Dahl. She is a highly precocious six and a half year old girl who has a passion for reading books. Her parents do not recognize her great intelligence and show little interest in her, particularly her father, a secondhand car dealer who has performed numerous abusive actions on her. She discovers she has psychokinetic powers which she uses to her advantage. In the BBC Radio 4 two-part adaptation of the novel, she is played by Lauren Mote and in the film, she is portrayed by American actress Mara Wilson.
Document 15: Pam Ferris: Pam Ferris (born 11 May 1948) is a Welsh character actress. She starred on television as Ma Larkin in "The Darling Buds of May", and as Laura Thyme in "Rosemary & Thyme", and has played parts in family films based on works by British authors, such as Miss Trunchbull in "Matilda" and as Aunt Marge in "Harry Potter and the Prisoner of Azkaban", and most recently as Sister Evangelina in "Call the Midwife".
ground_truth: Aunt Marge