public StudioGroup AddStudio(String studioName)
        {
            StudioGroup s      = new StudioGroup(studioName);
            Boolean     result = StudioGroups.Add(s);

            return(s);
        }
        /// <summary>
        /// Get all Movies in a given StudioGroup (Studio Groups not fully implemented)
        /// </summary>
        /// <param name="s"></param>
        /// <returns></returns>
        public HashSet <Movie> GetAllMovies(StudioGroup s)
        {
            HashSet <Movie> m = new HashSet <Movie>();

            //foreach (Movie item in s.Movies)
            //{
            //    m.Add(item);
            //}
            return(m);
        }