/// <summary>
        /// Creates a film in db
        /// </summary>
        /// <param name="film"></param>
        public void CreateFilm(Film film)
        {
            var collection = db.GetCollection <Film>(Films_Collection);

            collection.InsertOne(film);
        }
        /// <summary>
        /// Gets a list of all rents of a film from db
        /// </summary>
        /// <param name="film"></param>
        /// <returns>a list of all rents of a film from db</returns>
        public List <Rent> GetAllSameFilmRented(Film film)
        {
            var collection = db.GetCollection <Rent>(Rents_Collection);

            return(collection.Find(r => r.RentedFilm.Id == film.Id).ToList());
        }