Oskar Werner and Henri Serre play the title characters, who agree to a lengthy love triangle with Catherine.
In Godard's A Woman is a Woman, the female lead of this other movie is asked how its filming is going.  This film was based on a book by Henri-Pierre Roché, a roman a clef involving Marcel Duchamp. In this movie, the smile of a Greek sculpture is compared to that of Jeanne (*) Moreau's character, who gives birth to a daughter played by a young Sabine Haudepin. Oskar Werner and Henri Serre play the title characters, who agree to a lengthy love triangle with Catherine. For 10 points, name this 1962 film directed by François Truffaut.
In Godard's A Woman is a Woman, the female lead of this other movie is asked how its filming is going.  
{Jules et Jim} or {Jules} and {Jim}