public List <film> RechercherFilmParCritereEtSelection(string critere, string selection) => VMFilm.RechercherFilmParCritereEtSelection(critere, selection);
 public List <film> RechercherFilmParCritere(string critere) => VMFilm.RechercherParCritere(critere);
 public int SupprimerFilm(film f) => VMFilm.SuppFilm(f);
 public int ModifierFilm(film f) => VMFilm.ModifFilm(f);
 public int AjouterFilm(film f) => VMFilm.AjouterFilm(f);
 public List <film> GetListeFilm() => VMFilm.GetListeFilm();