Question: Writer Aschlin Ditta partner made her musical debut appears in this London revival music, but who wrote the original film? 
Context: Clare Foster (born 1981) is a British actress who trained at Masters Performing Arts College.  She has played numerous roles both on and off the West End, and has also been seen as a regular, PC Millie Brown, in the ITV series "The Bill".  Foster recently appeared in the 2011 London revival production of "Crazy for You", which played at the Novello Theatre, and in the 2016-2017 revival production of Tom Stoppard's "Travesties" first at the Menier Chocolate Factory and later at the Apollo Theatre.  She has appeared in the musical film "Les Misérables", and in the ABC fairy tale-themed musical comedy extravaganza series "Galavant" during its 2016 second season. Sheila Gish (23 April 1942 – 9 March 2005) was a British stage and screen actress.  For her role in the 1995 London revival of the Stephen Sondheim musical "Company", she won the Olivier Award for Best Supporting Performance in a Musical. The Catherine Tate Show is a British television sketch comedy written by Catherine Tate and Aschlin Ditta.  Tate also stars in all but one of the show's sketches, which feature a wide range of characters.  "The Catherine Tate Show" airs on BBC Two and is shown worldwide through the BBC.  Collectively, the show has been nominated for six BAFTA Awards, two British Comedy Awards and an Emmy Award, and it has won two Royal Television Society Awards, two British Comedy Awards and a National Television Award since its debut in 2004. Michelle Suzanne Dockery (born 15 December 1981) is an English actress and singer.  She is most widely known for her performance as Lady Mary Crawley in the ITV (UK) and PBS (U.S.) television period drama series "Downton Abbey" (2010–15), for which she was nominated for three consecutive Emmy Awards in the category for Outstanding Lead Actress In Drama Series, and a Golden Globe Award nomination.  She made her professional stage debut in "His Dark Materials" in 2004.  For her role as Eliza Doolittle in the 2007 London revival of "Pygmalion", she was nominated for the Evening Standard Award. Valentine Ruth Henshall (born 7 March 1967), known professionally as Ruthie Henshall, is an English actress, singer and dancer known for her work in musical theatre.  She began her professional stage career in 1986, before making her West End debut in "Cats" in 1987.  A five-time Olivier Award nominee, she won the 1995 Olivier Award for Best Actress in a Musical for her role as Amalia Balash in the London revival of "She Loves Me" (1994). Arvind Ethan David, (born 21 February 1975) is a Malaysian born, British film producer, founder of Slingshot Productions.  He is best known for producing David Baddiel’s "The Infidel" in 2010.  Other feature films he has produced include "Tormented" starring Alex Pettyfer and "French Film" starring Hugh Bonneville and Manchester United football legend Eric Cantona - with the latter winning Best Actor for Bonneville and Best Screenplay for Aschlin Ditta at the 2008 Monte Carlo Film Festival. Aschlin Ditta (born 20 June 1968) is a British television and film writer. Dirty Dancing is a 1987 American romantic drama dance film written by Eleanor Bergstein, directed by Emile Ardolino and starring Patrick Swayze and Jennifer Grey in the lead roles, and featuring Cynthia Rhodes and Jerry Orbach. Georgina Rich is a British actress.  Her stage credits included "Honour" (2006) and she made her musical debut in the 2006-11 London revival of the musical "Dirty Dancing".  Her most recent TV appearance was as Rosa Fallows, the police psychologist in the BBC One drama, "River" (2015).  She lives in North London with her partner, the writer Aschlin Ditta, and their daughter. Annie Get Your Gun – 1986 London Cast is an album from the first London revival of Irving Berlin's musical "Annie Get Your Gun", starring American rock musician Suzi Quatro as Annie Oakley and Eric Flynn as Frank Butler.  The revival was a David Gilmore Chichester Festival Theatre production.  It toured in the UK and then moved to the Aldwych Theatre in London's West End.
Answer: Eleanor Bergstein