During the 1960s and 1970s he worked with Claude Chabrol (The Breach), Luis Buñuel (as Stéphane Audran's husband in The Discreet Charm of the Bourgeoisie 1972), Ken Annakin (as Frenchman in Those Magnificent Men in their Flying Machines 1965), Gérard Brach (as Claude Jade's lover in The Boat on the Grass), Richard Lester (as Louis XIII of France in The Three Musketeers 1973 and its sequel The Four Musketeers 1974), Sidney Lumet (as Pierre in Murder on the Orient Express), Joseph Losey (with Isabelle Huppert in The Trout). He also made a memorable appearance in Oh! What a Lovely War as a French military officer singing 'Belgium put the Kibosh on the Kaiser'. In later years he appeared in Robert Altman's Prêt-à-Porter (1994) and also as Dr. Paul Gachet for Vincent & Theo (1990).