Enum on comboBox - Problem

Hi guys
I am working on a simple windows form application which has a simple class like this:

 public class Movie
    {
        public enum Type
        {
            Comedy,
            Action,
            Horor,
            Drama,
        }
        private string title;
        private Type type;

        public Movie(string title, Type type)
        {
            this.title = title;
            this.type = type;
        }
        public Movie() { }

        public string Title
        {
            get { return title; }
            set { this.title = value; }
        }
        public Type MovieType
        {
            get { return type; }
            set { this.type = value; }
        }
        public override string ToString()
        {
            return Title;
        }
    }

I also have a Form application

 public partial class Form1 : Form
    {
        Movie film;
        public Form1()
        {
            InitializeComponent();
        }

        private void btnAdd_Click(object sender, EventArgs e)
        {
            film.Title =txtInput.Text;
            listMovie.Items.Add(film);
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            {
                comboBox1.Items.Add(film.MovieType.ToString());
            }
        }
    }


which let the user to create a movie from by using txtInput and set the movie type by a combo box(enum)
Could you please how i can set the combobox to contains the values from my type enum?
as you can see I have :
comboBox1.Items.Add(film.MovieType.ToString());
but it just return just the first value(Comedy)!

Could you please let me know how i can fix this or let me know if there is any windows application examole or tutorial for enum?
Best regards