Hello, I am getting the 401 error "invalid api key" anyone know where im going wrong?

$(document).ready(function() {

    $.ajax({
            type: 'GET',
            url: 'https://api.themoviedb.org/3/movie/550?api_key=my key goes here',
            contentType: 'application/json',
            dataType: 'jsonp',
            success: function(json) {
                console.dir(json);
            },
            error: function(e) {
                console.log(e.message);
            }
    });
});