将json的数组字段转换为list

        public List<Movie> getPopularMovies()
    {
        List<Movie> movies = null;
        var client = new HttpClient();
        var task = client.GetAsync(url)
            .ContinueWith((taskwithresponse) =>
            {
                var response = taskwithresponse.Result;
                var jsonString = response.Content.ReadAsStringAsync();
                jsonString.Wait();
                movies = JsonConvert.DeserializeObject<List<Movie>>(jsonString.Result);
            });
        task.Wait();
        return movies;
    }
        public List<Movie> getPopularMovies()