public void AddMovie(string title, string director, string release, int genreID, int age, int duration, string description)
        {
            using (CinemaEntities database = new CinemaEntities())
            {
                Movie newMovie = database.Movie.Create();

                newMovie.Movie_ID     = Convert.ToInt32(database.sp_getSeqMovieID().FirstOrDefault());
                newMovie.Title        = title;
                newMovie.Director     = director;
                newMovie.Age_Category = age;
                newMovie.Duration     = duration;
                newMovie.Release_Date = DateTime.Parse(release);
                newMovie.Genre_ID     = genreID;
                newMovie.Description  = description;

                database.Movie.Add(newMovie);
                database.SaveChanges();
            }
        }