The Grand Manoeuvre
Les Grandes manœuvres (original)
Armand, a boastful womaniser, makes a bet that he can seduce any girl he wants. He soon crosses paths with a beautiful Parisian divorcee, who is nothing like anyone he has ever met before.
Starring Michèle Morgan, Gérard Philipe, Jean Desailly, Pierre Dux, Brigitte Bardot, Jacques François, Jacques Fabbri, Dany Carrel, Yves Robert, Colette Castel
Watch "The Grand Manoeuvre" on Criterion Channel released in 1955. It's a comedy and romance movie, and has a rating of 6.7 out of 10 from Imdb which is usually fine for this kind of movie.