/// <summary>
/// Grants the possibility to remove films from the shoppingcart.
/// </summary>
/// <param name="id">The film id to be removed.</param>
/// <seealso cref="OrderBLL.RemoveFilm"/>
/// <returns>Viewet ShoppingCart.cshtml</returns>
public ActionResult RemoveFilmFromShoppingCart(int id)
{
var chosenFilmIdList = (List <int>)Session["ShoppingCart"];
Session["ShoppingCart"] = _ordreBLL.RemoveFilm(chosenFilmIdList, id);
return(RedirectToAction("ShoppingCart"));
}