private async void ShowActorsPopup ()
{
var builder = new Android.Support.V7.App.AlertDialog.Builder (_context);
ListView listView = new ListView (_context);
List<Actor> actors = await DataManager.Instance.GetAllActorsForMovie (_movie);
listView.Adapter = new ActorsArrayAdapter (_context as Activity, actors.ToArray ());
listView.ItemClick += (object sender, Android.Widget.AdapterView.ItemClickEventArgs e) => {
int position = e.Position;
Intent intent = new Intent (_context, typeof(ActorDetailActivity));
intent.PutExtra ("selectKey", actors.ToArray () [position].id);
_context.StartActivity (intent);
};
builder.SetView (listView);
builder.SetOnDismissListener (this);
builder.Create ().Show ();
}