/// <span class="code-SummaryComment"><summary></span>
        /// Adds one movie to the movie list file
        /// <span class="code-SummaryComment"></summary></span>
        /// <span class="code-SummaryComment"><param name="sender"></param></span>
        /// <span class="code-SummaryComment"><param name="e"></param></span>
        /// 
        private void tsbAdd_Click(object sender, EventArgs e)
        {
            currentMovie = new MovieData();
            PopulateData pd = new PopulateData();
            pd.populate(textBox1, textBox2, dateTimePicker1, currentMovie);

            ClearData cd = new ClearData();
            cd.clear(textBox1, textBox2, dateTimePicker1, dirtyForm);
            DuplicateData dd = new DuplicateData();

            if (!dd.Check(movies , currentMovie))
            {
                movies.Add(currentMovie);//Add current movie to the List object
            }
            dirtyForm = true;
        }
 /// <span class="code-SummaryComment"><summary></span>
 /// Create a new movie data file, .movie, that stores movie entries
 /// which will be keyed in by user one by one
 /// <span class="code-SummaryComment"></summary></span>
 /// <span class="code-SummaryComment"><param name="sender"></param></span>
 /// <span class="code-SummaryComment"><param name="e"></param></span>
 private void newToolStripMenuItem_Click(object sender, EventArgs e)
 {
     if (dirtyForm == true)
     {
         if (MessageBox.Show(this, "You have not saved the current movie data; would you like to save before starting a new "
                          + "movie database?", "Save Current Data",
             MessageBoxButtons.YesNo) ==
             System.Windows.Forms.DialogResult.Yes)
         {
             saveAsToolStripMenuItem_Click(this, new EventArgs());
         }
         else
         {
             // discard and start new document
             movies = new List<MovieData>();
             ClearData cd = new ClearData();
             cd.clear(textBox1, textBox2, dateTimePicker1, dirtyForm);
         }
     }
     else
     {
         // start new document
         movies = new List<MovieData>();
         ClearData cd = new ClearData();
         cd.clear(textBox1, textBox2, dateTimePicker1, dirtyForm);
     }
 }