C# Problem

//Variables
        MM_Methods object_MM = new MM_Methods();
        Serializer object_Serialize = new Serializer();
        string str_path = "C:\\temp\\MM_data";
        //

private void button_close_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void MainWindow_FormClosing(object sender, FormClosingEventArgs e)
        {
            object_MM.serializeMovies(lb_movies);
            object_Serialize.SerializeMovies(MM_Methods.Access, str_path);
        }

 object_MM.serializeMovies(lb_movies);

FileStream fStream;
		StreamWriter sw;
		StreamReader sr;
        MM_SerializedData object_deserialize;

        //Serialize
        public void SerializeMovies(MM_SerializedData objekt, string path)
        {
            BinaryFormatter binFormatter = new BinaryFormatter();
            fStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Write);
            sw = new StreamWriter(fStream);
			binFormatter.Serialize(fStream, objekt);
			
			sw.Close();
            fStream.Close();
        }

//Data to serialize
        public void serializeMovies(ListBox movies)
        {
            foreach (string entry in movies.Items)
            {
                Access.list_movies.Add(entry);[SIZE="6"]
    }
    }[/SIZE]
        //