'' Dossier 51 '' ( ) is a 1978 French crime drama film directed by Michel Deville and based on a novel by Gilles Perrault . Deville and Perrault won a César Award for Best Writing for their adaptation . The film was screened in the Un Certain Regard section at the 1978 Cannes Film Festival
1978 Cannes Film Festival
1978 Cannes Film Festival
Dossier 51