Yesterday, I have seen a film that could interest you : Stavisky, because it's directed by Alain Resnais (1974), and it's with Jean-Paul Belmondo.
A story maybe a little bit complicated, because it alternates between past, present and future, and we wonder what comes to make Trotsky in this story, despite an attempt of explanation towards the end of the film.
But it's also a nice reconstitution of 1930's, with an impeccable Belmondo, like the supporting cast : Charles Boyer, François Périer, Michael Lonsdale, and even a short appearance of a young and still unknown Gérard Depardieu.