Question: Gemma Christina Arterton, is an English actress, she plays the lead role in which 2016 British war comedy-drama film directed by Lone Scherfig and written by Gaby Chiappe, based on the 2009 novel "Their Finest Hour and a Half" by Lissa Evans?
Context: An Education is a 2009 coming-of-age drama film based on a memoir of the same name by British journalist Lynn Barber.  The film was directed by Lone Scherfig from a screenplay by Nick Hornby.  It stars Carey Mulligan as Jenny, a bright schoolgirl, and Peter Sarsgaard as David, the charming con man who seduces her.  The film was nominated for three Academy Awards in 2010: Best Picture and Writing (Adapted Screenplay) for Nick Hornby, and Best Actress for Carey Mulligan. One Day is a 2011 British-American romantic drama film directed by Lone Scherfig, and starring Anne Hathaway and Jim Sturgess.  Focus Features released the film theatrically in August 2011.  It was adapted by David Nicholls from his eponymous 2009 novel. Their Finest is a 2016 British war comedy-drama film directed by Lone Scherfig and written by Gaby Chiappe, based on the 2009 novel "Their Finest Hour and a Half" by Lissa Evans.  The film stars Gemma Arterton, Sam Claflin, Bill Nighy, Jack Huston, Jake Lacy, Richard E. Grant, Henry Goodman, Rachael Stirling, Eddie Marsan, Helen McCrory, and Claudia Jessie.  The film tells the story of a British Ministry of Information film team making a morale-boosting film about the Dunkirk evacuation during the Battle of Britain and the London Blitz. Gemma Bovery is a 2014 French-British comedy-drama film based on Posy Simmonds' 1999 graphic novel of the same name.  Directed by Anne Fontaine, the film stars Gemma Arterton, Jason Flemyng, Mel Raido, and Fabrice Luchini.  The film premiered in the Special Presentations section at the Toronto International Film Festival on 6 September 2014. "An Education" is a 2009 coming-of-age drama film directed by Lone Scherfig and written by Nick Hornby.  It is based on the memoirs of the same name by British journalist Lynn Barber.  The film premiered on 18 January 2009 at the Sundance Film Festival and screened at the Toronto International Film Festival on 10 September 2009.  The film then showed at the Mill Valley Film Festival before being released in the United Kingdom by Sony Pictures Classics on 30 October 2009, and going into wide release in the United States on 5 February 2010.  "An Education" earned over $26 million in its combined total gross at the box office. Lone Scherfig (born 2 May 1959) is a Danish film director and screenwriter who has been involved with the Dogme 95 film movement and who has been widely critically acclaimed for several of her movies, including the Oscar-nominated film "An Education" (2009).  Scherfig's movies are generally romantic comedies, including her film "One Day" (2011), based on the David Nicholls novel.  Through both experimenting with creative constraints and her astute attention to detail, she has come to be recognized as a blossoming talent in the film industry. The Girl with All the Gifts is a 2016 British post-apocalyptic zombie horror drama film directed by Colm McCarthy and written by M.R. Carey adapted from his novel of the same name.  Starring Gemma Arterton, Paddy Considine, Glenn Close, and Sennia Nanua, the film depicts a dystopian future following a breakdown of society after most of humanity is wiped out by a fungal infection.  The plot focuses on the struggle of a scientist, a teacher, and two soldiers who embark on a journey of survival with a special young girl named Melanie. The Riot Club is a 2014 British drama film directed by Lone Scherfig and written by Laura Wade, based on Wade's 2010 play "Posh".  The film stars Max Irons, Sam Claflin and Douglas Booth.  It is set among the Riot Club, a fictional all-male, exclusive dining club at Oxford University.  When the play "Posh" premiered, the Riot Club was often described as a thinly veiled version of the real-life Bullingdon Club, or High Trees Society, although according to Wade it is entirely fictitious. "Tom & Gerri" is the third episode of British dark comedy anthology series "Inside No. 9".  It premiered on BBC2 on 19 February 2014.  The episode was based on a play that Steve Pemberton and Reece Shearsmith had written while living together prior to the development of their series "The League of Gentlemen".  While the play had originally been around two hours in length, the episode was only half an hour.  "Tom & Gerri" follows a difficult period in the life of Tom (Shearsmith), a primary school teacher and aspiring writer, and his girlfriend Gerri (Gemma Arterton), a struggling actress, after Tom invites the homeless Migg (Pemberton) into his home.  Conleth Hill stars as Stevie, a man worried about the mental health of his friend Tom.  The entire episode takes place inside Tom's flat. Gemma Christina Arterton (born 2 February 1986) is an English actress.  Arterton made her film debut in the comedy film "St Trinian's" (2007).  Her breakthrough role was in the James Bond film "Quantum of Solace" (2008), playing Bond Girl Strawberry Fields, which won her an Empire Award for Best Newcomer.  She is known for her roles in the fantasy films "Clash of the Titans" (2010), "Prince of Persia: The Sands of Time" (2010), "Byzantium" (2013) and as the character Gretel in "" (2013).  She played Joan in Bernard Shaw's Saint Joan at Donmar Warehouse, December 2016.  She plays the lead role in "Their Finest" (2017).
Answer: Their Finest