Asp.net MVC shared method

Hi experts,

I'm dabbling with ASP.net MVC and slowly working through this excellent tutorial . I've got to the point where I've created a lookup list of movie genres which is used for searching the list of movies. I now realise that it would be useful to have the same list when creating or editing a movie. I realise that it is bad practice to recreate the code each time for the routing methods. So how would I organise the code so it is placed in one location and then referenced from there wherever I need it.

        public ActionResult SearchIndex(string movieGenre, string searchString)
        {
            //+++++++++START OF GENRE LIST CREATION+++++++++++++++
            var GenreLst = new List<string>();

            var GenreQry = from d in db.Movies
                           orderby d.Genre
                           select d.Genre;
            GenreLst.AddRange(GenreQry.Distinct());
            ViewBag.movieGenre = new SelectList(GenreLst);
            //+++++++++END OF GENRE LIST CREATION+++++++++++++++

            var movies = from m in db.Movies
                         select m;

            if (!String.IsNullOrEmpty(searchString))
            {
                movies = movies.Where(s => s.Title.Contains(searchString));
            }

            if (string.IsNullOrEmpty(movieGenre))
                return View(movies);
            else
            {
                return View(movies.Where(x => x.Genre == movieGenre));
            }

        }


        public ActionResult Create()
        {
	//++++++I'd like to create the genre list here before being passed
                  //to the create movie view without repeating the section of code 
	//from the searchIndex method above++++++++

            return View();
        }

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I'm guessing that I create a public method within the same class and call it from both of the other methods.

Any help would be appreciated.

Joe