Title: De vrais mensonges
Content:  De vrais mensonges is a 2010 French comedy-romance film starring Audrey Tautou and directed by Pierre Salvadori. The screenplay was written by Salvadori and Benoît Graffin. It was distributed in English-speaking countries under the titles Beautiful Lies and Full Treatment.
Title: Manèges
Content:  Manèges is a French film directed by Yves Allégret and released in 1950. The film stars Simone Signoret (married at the time to Allégret, although the marriage came to an end soon after), Bernard Blier and Jane Marken. It is shot in black-and-white in film noir style, with extensive use of flashback and the voiceover of characters' unspoken thoughts. Manèges is noted for the exceptionally harsh and cynical manner in which Allégret delineates the characters of his two female leads, and has been accused of being misogynistic in tone. The film was released in English-speaking markets under various titles, including The Wanton, The Cheat and The Riding School.
Title: Marcel Duhamel
Content:  Marcel Duhamel (16 July 1900 in Paris – 6 March 1977 in Saint-Laurent-du-Var) was a French actor and screenwriter, founder of the Série noire publishing imprint. He played The Foreman in Jean Renoir's 1936 The Crime of Monsieur Lange. In 1953 he was credited as screenplay writer for This Man Is Dangerous, a French film adaptation of Peter Cheyney's novel of the same name. He translated and published Jim Thompson's 1964 pulp novel Pop. 1280 as 1275 Âmes ("souls") in French in 1966. Thereafter, the book was transposed to French colonial Africa in Bertrand Tavernier's film Coup de Torchon (Clean Slate) in 1981.
Title: Méfiez-vous, mesdames
Content:  Méfiez-vous, mesdames! (English title: Be Careful, Ladies!) is a 1963 French comedy film directed by André Hunebelle. The screenplay was written by Pierre Foucaud and Jean Halain, based on a novel by Ange Bastiani. It tells the story of a former lawyer who discovers a woman's murder plot.
Title: Mangeuses d'Hommes
Content:  Mangeuses d'Hommes (English language release title Man Eaters) is a cult 1988 French-language sex-comedy/horror film, shot in Sierra Leone (mainly in the jungle near Tokey Beach and Black Johnson Cove) and based on a farce of the same name, first performed on stage in Paris, running for over five years and written by French author/director Daniel Colas. It is loosely based on the story of the survivors of the 1972 Andes plane crash who were forced to eat the bodies of their fellow passengers. It stars Catriona MacColl, Daniel Colas, Coralie Seyrig, Marc Sinden, Ray Lonnen, Roberta Weiss and Daniel Russo. The publicity strap-line is "Two shipwrecked castaways discover the island they have 
Title: Thirst of Men
Content:  Thirst of Men (French: La soif des hommes) is a 1950 French historical drama film directed by Serge de Poligny and starring Georges Marchal, Dany Robin and Andrée Clément. It was filmed and set in French Algeria. The film's sets were designed by Raymond Gabutti and René Moulaert.
Title: Arrête avec tes mensonges
Content:  Arrête avec tes mensonges is a novel by the French writer Philippe Besson. It was published in 2017 and received critical acclaim. It won the Maison de la Presse Prize. It was translated into English by Molly Ringwald under the title Lie With Me and was lauded by English-language reviewers. Set in 1984 in rural France, in the small town of Barbezieux, the novel recounts the teenage love affair between the narrator and his schoolmate Thomas Andrieu.
Title: Jacques Mesrine
Content:  A film about Mesrine; Mesrine, was released in 1984. It featured Nicolas Silberg in the title role and was written and directed by André Génovès. Hard rock ensemble Trust dedicated two tracks ("Le Mitard" and "Instinct de Mort") to Mesrine on their 1980 album Repression. Punk group The Blood recorded a track titled "Mesrine" on their 1983 False Gestures For A Devious Public LP. There is also a Quebec-based grindcore band named Mesrine. In the French novel, Les Rivières Pourpres, the protagonist, Niémans, is implicated in Mesrine's assassination. A two-part film, L'instinct de mort (English title: Mesrine: Killer Instinct) and L'ennemi public No. 1 (English title: Mesrine: Public Enemy No. 1), recounting Mesrine's career and starring Vincent Cassel in the lead role, was released in France in 2008 and in the UK in August 2009. Popular French-Algerian rap duo PNL released a track titled "Porte de Mesrine" in 2015.
Title: La Vérité si je mens !
Content:  La Vérité si je mens ! (English title: Would I Lie to You?) is a 1997 French film, directed by Thomas Gilou. It was followed by a sequel, ''La Vérité si je mens ! 2, in 2001, and a third movie La vérité si je mens ! 3'', in 2012.
Title: Une souris chez les hommes
Content:  Une souris chez les hommes A Mouse with the Men, is a French comedy film from 1963, directed by Jacques Poitrenaud, written by Michel Audiard and Francis Ryck, starring Dany Saval and Louis de Funès. The film is known under the titles: "A Mouse with the Men" (International English title), "Un drôle de caïd" (alternative French title), "O Tesouro Oculto" (Portugal), "Bei Oscar ist 'ne Schraube locker" (West Germany), "Due uomini in fuga... per un colpo maldestro" (Italy).

Question: Who was the screenwriter for Mensonges et trahisons et plus si affinités?
Answer: Laurent Tirard.