Diva

Diva is a 1981 French thriller film directed by Jean-Jacques Beineix, adapted from the novel Diva by Daniel Odier. It eschewed the realist mood of the 1970s French cinema and instead adopted a colourful, melodic style, later described as cinéma du look. The mixture of "film noir, opera and art-house styles" did not please the producers, but was more to the liking of the Canadian audience at the Toronto International Film Festival where it was screened and achieved a "Critics' Choice" in 1981.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.