private void radioButton1_CheckedChanged(object sender, EventArgs e)
 {
     if (radioButton1.Checked)
     {
         All_Rented_Movies ar = new All_Rented_Movies();
         ar.Show();
     }
 }
        private void button9_Click(object sender, EventArgs e)
        {
            All_Rented_Movies ar = new All_Rented_Movies();

            ar.Show();
        }