Question: Who chaired the 27th César Awards ceremony in which a film written by Jeunet with Guillaume Laurant won the award for the Best Film?
Sentence (from "7th César Awards"): The 7th César Awards ceremony, presented by the Académie des Arts et Techniques du Cinéma, honoured the best French films of 1981 and took place on 27 February 1982 at the Salle Pleyel in Paris.
Relevant evidence: No