Question: Cashback was a movie that starred which English actress from "Silent Witness"?

full_context: Document 1: 606 Films: 606 Films is a motion picture production company founded by Oscar-winning actress Halle Berry, and inspired by the California Senate Bill that put limits on paparazzi and their photography of children of celebrities. The bill was signed into law by Gov. Jerry Brown. The production company was co-founded by Elaine Goldsmith Thomas who repped for Julia Roberts at ICM Partners and later she went on to run Revolution Studios founded by Joe Roth. The foundation of the company stems from Halle Berry's role in the CBS science-fiction drama Extant (TV series) and the company will be housed on the production lot at CBS.
Document 2: Red (2016 film): Red is a short dark thriller set in the underground world of illegal organ smuggling, the so-called red market. It's the directing debut of Branko Tomovic who is probably best known in the US for playing Jack Bauer's sidekick in the recent "24: Live Another Day" series and stars British actress Francesca Fowler (Doctor Who, Rome, Closure) with the acclaimed Irish actress Dervla Kirwan (Ondine, Ballykissangel, The Silence, Doctor Who) as the sadistic and cruel crime boss.
Document 3: Emilia Fox: Emilia Rose Elizabeth Fox (born 31 July 1974) is an English actress, known for her role as Dr. Nikki Alexander on BBC crime drama "Silent Witness", having joined the cast in 2004 following the departure of Amanda Burton. Fox is now the longest serving cast member since the departures of Tom Ward in 2012 and William Gaminara in 2013. She also appeared as Morgause in the BBC’s "Merlin" beginning in the programme's second series. She was educated at Bryanston School in Blandford, Dorset.
Document 4: Confetti (2006 film): Confetti is a 2006 British mockumentary romantic comedy film released on 5 May 2006. It was conceived and directed by Debbie Isitt and stars many acclaimed British comedians, including Jessica Stevenson, Jimmy Carr, Martin Freeman, Mark Heap, Julia Davis, Robert Webb and Olivia Colman. It follows a bridal magazine competition for the most original wedding, the ultimate prize being a house, and the three couples who are chosen to compete. The film follows the contestants in a fly-on-the-wall documentary style, akin to "The Office". The script is entirely improvised.
Document 5: Alex Kingston: Alexandra Elizabeth Kingston (born 11 March 1963) is an English actress, who trained at the Royal Academy of Dramatic Art in London. Active from the early 1980s, Kingston became noted for her television work in both Britain and America in the 1990s, including her portrayal of the title role in the British miniseries "The Fortunes and Misfortunes of Moll Flanders" (1996) and her regular role as Dr. Elizabeth Corday in the NBC medical drama "ER" (1997–2004).
Document 6: Catherine Steadman: Catherine Steadman is an English actress, best known for playing Mabel Lane Fox in series 5 (2014) of ITV drama "Downton Abbey". She also played Nurse Angela Wilson in ITV's 1960s drama "Breathless", Joan Bulmer in the final season of "The Tudors" and Maggie Lewis in the 2016 ITV miniseries "Tutankhamun".
Document 7: Silent Witness: Silent Witness is a British television crime drama series, produced by the BBC, which focuses on a team of forensic pathology experts and their investigations into various crimes. First broadcast in 1996, the series was created by Nigel McCrery, a former murder squad detective based in Nottingham. He later went on to create the hit series "New Tricks", with writer Roy Mitchell. Since 1996, twenty series of the programme have been broadcast. Amanda Burton originally starred as primary character Dr. Sam Ryan, before leaving the show during the eighth series. Since, the series has featured more of an ensemble cast, currently consisting of Emilia Fox, David Caves, Liz Carr and Richard Lintern. The programme is broadcast in more than 235 territories, including ABC in Australia, Showcase and the Knowledge Network in Canada, KRO in the Netherlands, TV One and Prime in New Zealand, and BBC America in the United States. Twenty years after its inception, "Silent Witness" continues to achieve good audience ratings; in 2011 Series 14 attracted an average audience of nine million viewers.
Document 8: Alexandra Moen: Alexandra Moen (born 1978) is an English actress, best known for her roles as Emily James in the drama series "Hotel Babylon", Tamsin in the drama series "Tripping Over", and Lucy Saxon in the science fiction series "Doctor Who".
Document 9: The Broken (film): The Broken is a French-British horror film written and directed by Sean Ellis and starring Lena Headey.
Document 10: Mercedes McQueen: Mercedes Maria Theresa Immaculata McQueen (also Owen, Fisher and Browning) is a fictional character from the British Channel 4 soap opera, "Hollyoaks", played by Jennifer Metcalfe. She debuted on-screen during the episode airing on 19 June 2006 as the first character to be introduced to the series by series producer, Bryan Kirkwood. In 2008 Metcalfe feared that the character was to be axed but was later reassured by the series producer that she would not be. Metcalfe later stated her intention to stay with the series. Mercedes is part of the McQueen family and is the longest serving McQueen on the series. On 26 August 2014, it was revealed that Metcalfe had decided to quit the soap. On 18 November 2014, Mercedes was presumably stabbed to death, with her body discarded. However, Metcalfe returned to screens on 17 February 2015 in a surprise, unannounced twist which saw Mercedes revealed as alive and well, living in Nice, France. It was announced that Mercedes would make a full-time return to the show in May 2015, after brief appearances on 18 February, 9 March, and 6 April. Metcalfe took another hiatus from the show beginning 21 January 2016, before reappearing 1 April 2016. Metcalfe announced her pregnancy in 2017 and revealed that she would be taking a year's break from the show. Mercedes was last seen on screen leaving with Goldie McQueen (Chelsee Healey) on 4 July 2017. As of July 2017, Mercedes and Goldie have been removed from the show's opening credits, following their departure. On 7 September 2017, Mercedes briefly pops back up onscreen in a flashback with Amy Barnes.
Document 11: Eileen Derbyshire: Eileen Derbyshire, (born 6 October 1930) is a retired English actress, best known for her role as Emily Bishop in the soap opera "Coronation Street". She has played the character for 55 years as she joined permanently in 1961, making her the longest-serving female cast member in a British soap opera. She is the mother of sports journalist Oliver Holt. She was awarded an MBE in the 2010 Queens Birthday Honours list with her fellow co-star and friend, Barbara Knox.
Document 12: Craig Cash: Craig Cash (born 11 September 1960) is an English comedian, actor, director and BAFTA award-winning writer and producer. His best known work is in the television shows "The Royle Family", "The Fast Show", "The Mrs Merton Show", "Early Doors", "Sunshine" and most recently "The Cafe", "Rovers" and "After Hours".
Document 13: Cashback (film): Cashback is a 2006 British romantic comedy-drama film written and directed by Sean Ellis. Originally exhibited as a short in 2004, it was expanded to feature length in 2006. Both versions were produced by Lene Bausager, starring Sean Biggerstaff and Emilia Fox. The feature was released by Magnolia Pictures in late 2006 and also starred Michelle Ryan.
Document 14: Bill Cashmore: Bill Cashmore (born 1961) is an English actor, playwright, director and co-founder of Actors in Industry. Bill started his acting career in the Cambridge Footlights and went on to have roles in "The Bill", "Casualty", "All Creatures Great and Small", "Fist of Fun" (playing The Man, the Bootleg Bootleg George Harrison, and a particularly memorable turn as The Piemaster), The News Revue and The Day Today. Bill was a writer and performer for 'Gimme 5', the live ITV children's programme. He has written several plays with Andy Powrie, including 'Trip of A Lifetime', published by Samuel French, which has been performed around the world. He has also written and performed a one-man show called "An Everyday Actor" about his experiences in the acting profession. Bill's play 'Daughter' won best play at the 2016 Ink Festival and transferred to the Pleasance theatre London. Bill is also a travel writer having written for the Sunday Telegraph and the Spectator.
Document 15: Cash (1933 film): Cash is a 1933 British comedy film directed by Zoltan Korda and starring Edmund Gwenn, Wendy Barrie and Robert Donat. It was made by Alexander Korda's London Film Productions.
ground_truth: Emilia Rose Elizabeth Fox