Question: Claire Mathon was nominated for the Cesar Award for the 2013 French drama-thriller written by whom?
Context: 9 Month Stretch (French: 9 mois ferme ) is a 2013 French comedy film written, directed by and starring Albert Dupontel.  It was nominated for six categories at the 39th César Awards including Best Film and Best Director and Best Actor for Dupontel, winning Best Actress for its co-star Sandrine Kiberlain and Best Original Screenplay. Harbourmaster Hotel is a Grade II listed boutique hotel on the quay in the coastal town of Aberaeron, Ceredigion, west Wales.  It is located in a distinctive French blue painted building, formerly the harbourmaster's home and later a whaler's inn, dating from 1811.  The hotel, noted for its seafood restaurant, is especially lively during the annual Aberaeron Seafood Festival.  The Good Hotel Guide awarded it a Cesar Award in 2005. Claire Mathon (born 1975) is a French cinematographer.  She studied film at the École nationale supérieure Louis-Lumière and graduated in 1998.  Since then, she has worked on several short films, documentaries and feature films.  She was nominated for the César Award for Best Cinematography for the film "Stranger by the Lake". Stranger by the Lake (French: L'Inconnu du lac ) is a 2013 French drama-thriller film written and directed by Alain Guiraudie.  The film premiered in the Un Certain Regard section at the 2013 Cannes Film Festival where Guiraudie won the award for Best Director.  The film also won the Queer Palm award, and was mentioned on multiple top ten lists of the best films of 2014. Mark Lee Ping-bing (李屏賓; born August 8, 1954) is a Taiwanese cinematographer, photographer and author with over 70 films and 21 international awards to his credit including 2 Glory Of The Country Awards from the Government Information Office of Taiwan and the president of Taiwan's Light Of The Cinema Award.  Lee began his film career in 1977 and in 1985 he started his prolific collaboration with Taiwanese filmmaker Hou Hsiao-hsien.  Known best for his use of natural lighting utilizing real film and graceful camera movement, Lee received the Grand Technical Prize at the Cannes Film Festival in 2000 for "In the Mood for Love".  A member of the Academy of Motion Picture Arts and Sciences, Lee was honored with nominations by the American Society of Cinematographers for its 2014 First Annual Spotlight Award for Best Cinematography for his work on the 2012 film "Renoir" and by the French Academy of Cinema Arts for a Cesar Award for Best Cinematography in 2014 also for the film "Renoir". Jappeloup is a 2013 French film directed by Christian Duguay.  In January 2014, Lou de Laâge was nominated for the Most Promising Actress award at the 39th César Awards. Corinne Masiero (born 3 February 1964) is a French actress.  She was born in Douai.  She began acting in her late 20s, initially appearing in the theatre before moving on to the screen.  She is best known for her lead role in the 2011 film "Louise Wimmer", for which she was nominated for the Cesar Award for best actress.  She has also had notable roles in "Rust and Bone" and "11.6". Young & Beautiful (French: Jeune & Jolie ) is a 2013 French drama film of adolescent sexuality directed by François Ozon and produced by Eric and Nicolas Altmayer.  The film stars Marine Vacth in the leading role of Isabelle, a teenage prostitute, and features supporting performances by Johan Leysen, Géraldine Pailhas, Frédéric Pierrot, and Charlotte Rampling.  The film was nominated for the Palme d'Or at the 2013 Cannes Film Festival, and received praise from the film critics.  It was shown at the 2013 Toronto International Film Festival. A Castle in Italy (French: Un château en Italie ) is a 2013 French drama film directed by Valeria Bruni Tedeschi.  It was nominated for the Palme d'Or at the 2013 Cannes Film Festival. Tsilla Chelton (21 June 1919 – 15 July 2012) was a French actress of theatre and film, famous for playing the main role in 1990 film Tatie Danielle, in which she was nominated for a Cesar award and as an elderly Dominican in Soeur Sourire.
Answer: Alain Guiraudie