Comédie d'été (1989)

Adrien does not see eye to eye with his patrician father about much. It is 1912, and the old man still believes in the old rules which strait-jacket "men of class." He believes that the elite have the right to conquer where they can, that they should refrain from publicizing their improprieties, and he is rabidly pro-military. Adrian, kicked out of his military school for his own improprieties (and hiding that from his father), is naturally drawn to Vicky a beautiful divorced woman and friend of the family who is staying at their mansion. The family tutor, a man of ordinary background (with some ideas which seem radical in this household) is similarly smitten. On the basis of their shared attraction, the two men form a friendship. Meanwhile, the object of their affection finds it diverting to toy with them.

Unfortunately the movie Comédie d'été is not yet available on HBO Max.