 Jean-Claude Mézières himself has worked as a concept artist on a number of science fiction film projects. The first of these was in 1984 for director Jeremy Kagan who was attempting to adapt René Barjavel's novel La Nuit des temps (The Ice People). The film was never made. This was followed, in 1985, by a proposed adaptation of Arkady and Boris Strugatsky's novel Hard to Be a God for director Peter Fleischmann. This film was eventually finished in 1989 though Mézières' concepts for the film were barely used. The art Mézières produced for both projects was later published in Mézières Extras.
