private async void OnLoad()
        {
            try
            {
                moviesListView.IsRefreshing = true;
                var movies = await Service.GetMoviesByCinemaId(Cinema.Id);

                MovieList = new ObservableCollection <Movie>(movies.Where(m => m.Title != null));
                moviesListView.ItemsSource = MovieList;
            }
            catch (Exception E)
            {
                await DisplayAlert("Error", $"{E} - {E.Message}", "Exit");

                AppControls.CloseApp();
            }
            finally
            {
                moviesListView.IsRefreshing = false;
            }
        }