Therese states that they can see a new movie with Jeanne Moreau and Brigitte Bardot. That movie would have to be Viva Maria. However, Viva Maria was released in November 1965 while this film was released in February 1965. Therese could not see a movie at that time that wouldn't be released for nine more months.
(at around 6 mins) When François helps his daughter open the car back door, a cameraman's reflection is visible in the car door window.