bootstrap popover来显示图像

Question

我使用bootstrap popover来显示图像，但它似乎不起作用。电影的标题正在弹出窗口上显示，但不是电影的图像。请帮助！

 $.ajax({

            url: "http://api.rottentomatoes.com/api/public/v1.0/movies.json?apikey=XXXX&q=" + name + "&page_limit=5",
            dataType: "jsonp",
            success: function (response) {
                $(".display-movie").empty();
                var ul = $(".display-movie");
                console.log(response);
                for (var i = 0; i < response.movies.length; i++) {

                    var img = $("<img>").attr("src", response.movies[i].posters.thumbnail)
                                     .css({
                                         width: 200,
                                         height: 200,
                                         margin: 20
                                     }).append(aend);

                    var astart = $("<a>", {
                        href: '#',
                        rel: 'popover',
                        title : response.movies[i].title,
                    }).append(img);

                    var aend = $("</a>");
                    var div = $("<div></div>")
                        .append(astart)
                        .append(response.movies[i].title);
                    $("<li></li>")
                        .append(div)
                        .appendTo(ul);


                    var popoverimg = '<img src = "' + response.movies[i].posters.thumbnail + '"/>';
                    $(".display-movie").popover({
                        title : response.movies[i].title,
                        content: popoverimg,
                        html : true
                    });
                }
            }
        });

在html中我有：ul class =“display-movie”