Replace:
$.ajax({
type: "GET",
url: "http://www.imdbapi.com/",
cache: false,
data: dataString,
success: function(html){
//$("#more").after(html);
alert("Success!");
}
});
With
$.getJSON('http://www.imdbapi.com/?' + dataString, function(json_data){
alert(JSON.stringify(json_data));
});