Did Claude Chabrol and Bertrand Blier both win Academy Awards for films they directed?
no
Claude Chabrol
Claude Henri Jean Chabrol (] ; 24 June 1930 – 12 September 2010) was a French film director and a member of the French New Wave ("nouvelle vague") group of filmmakers who first came to prominence at the end of the 1950s.
 Like his colleagues and contemporaries Jean-Luc Godard, François Truffaut, Éric Rohmer and Jacques Rivette, Chabrol was a critic for the influential film magazine "Cahiers du cinéma" before beginning his career as a film maker.
Bertrand Blier
Bertrand Blier (born 14 March 1939) is a French film director and writer.
 His 1978 film "Get Out Your Handkerchiefs" won the Academy Award for Best Foreign Language Film at the 51st Academy Awards.
The Champagne Murders
The Champagne Murders (French: Le scandale ) is a 1967 French suspense thriller mystery film directed by Claude Chabrol and starring Anthony Perkins.
 It was the first of two films that Chabrol made with Perkins, who is most famous for his role in "Psycho" directed by Alfred Hitchcock, whom Chabrol admires above all other directors. Hell (1994 film)
L'Enfer ("Hell") is a 1994 French film directed by Claude Chabrol.
 It was adapted by Chabrol from the screenplay by Henri-Georges Clouzot for the unfinished film "L'Enfer", which Clouzot began shooting in 1964 but was unable to complete.
 The producer of Chabrol's film was Marin Karmitz and the leading actors were Emmanuelle Béart and François Cluzet. Isabelle Sadoyan
Isabelle Sadoyan (12 May 1928 – 10 July 2017) was a French-Armenian actress.
 She was the wife of actor Jean Bouise.
 Her filmography includes films by Jeanne Moreau, Claude Chabrol, Claude Lelouch, Luc Besson, Jean-Luc Godard, Henri Verneuil, Bertrand Tavernier, Robert Kechichian and Krzysztof Kieślowski. Buffet froid
Buffet froid is a 1979 French film written and directed by Bertrand Blier, starring Gérard Depardieu, Carole Bouquet, Bernard Blier and Jean Carmet.
 The film is a crime thriller, but displays a high degree of black humour, with contemporary urban life depicted as alienating and having a dehumanizing effect on city dwellers.
 The film won a César Award for Best Writing, and was nominated for Best Cinematography, Editing, and Production Design. If I Were a Spy
If I Were a Spy (French: Si j'étais un espion ) is a 1967 French crime film directed by Bertrand Blier, starring Bernard Blier and Bruno Cremer.
 It tells the story of a medical doctor who gets into trouble when one of his patients turns out to be hunted by the mafia.
 Filming took place from 15 November to 18 December 1966.
 The film was released in France in August 1967. How Much Do You Love Me?
How Much Do You Love Me?
 (French: Combien tu m'aimes ? )
 is a 2005 French romantic comedy film written and directed by Bertrand Blier.
 It was released on 26 October 2005 in France and Belgium, and had a limited United States release on 18 March 2006.
 It was entered into the 28th Moscow International Film Festival where Blier won the Silver George for Best Director. Get Out Your Handkerchiefs
Get Out Your Handkerchiefs (French: Préparez vos mouchoirs ) is a 1978 French romantic comedy film directed by Bertrand Blier and starring Carole Laure, Gérard Depardieu, Patrick Dewaere and Riton Liebman.
 The film won the Academy Award for Best Foreign Language Film at the 51st Academy Awards. Miou-Miou
Miou-Miou (] ; born Sylvette Herry on 22 February 1950) is a French actress.
 In her career she has worked with a number of international directors, including Michel Gondry, Bertrand Blier, Claude Berri, Jacques Deray, Patrice Leconte, Joseph Losey and Louis Malle.
 A 10-time César Award nominee, she won the César Award for Best Actress for the 1979 film "Memoirs of a French Whore".
 Her other films include "This Sweet Sickness" (1977), "Entre Nous" (1983), "May Fools" (1990), "Germinal" (1993), "Dry Cleaning" (1997) and "Arrêtez-moi" (2013).