I have a form in new_video that upon submitting, I want it to add the video to the videocollection, and update just that section(region?) of the page.

main.js

    function($, _, Backbone, app, global_bindings, VideoModel, VideosCollection, VideoCollectionView, VideoForm) {
      "use strict";

      var data_items = app.setting("bootstrapped_videos");

      var video_collection_items = new VideosCollection();
      video_collection_items.reset(data_items);

      var video_collection_view = new VideoCollectionView({
        collection: video_collection_items
      });

      var video_region = new Backbone.Marionette.Region({
        el: "#videos_container"
      });
      video_region.show(video_collection_view);

      //var video_model = new VideoModel();
      var video_form = new VideoForm({
        el: "#generic_upload"
      });
      video_form.render();

    });

new_video.js

       function($, _, Backbone, Marionette, rivets, app, dateutils, Video,
                VideosCollection, VideosCollectionView, tmpl) {

         var VideoForm = Marionette.Layout.extend({
           template: tmpl,

           regions: {
             videos_region: "#generic_upload"
           },

           events: {
           },

           modelEvents: {
           },

           onRender: function() {
             var self = this;
             var path = window.location.pathname.split("/");
             path = path.slice(1, path.length - 1);
             this.$el.find("input[name='v_session']").val(path[3]);
             this.$el.find("select[name='v_category']").val(path[2]).prop("disabled", "disabled");
             this.$el.find("select[name='v_chamber']").val(path[0]).prop("disabled", "disabled");
             this.$el.find(".date_input").datepicker();
             this.$el.find("#fileupload").fileupload({
               url: app.setting("video_file_api"),
               dataType: "json",
               formData: function(form) {
                 data = form.serializeArray();
                 console.log("date: ", data);

                 return data;
               },

               done: function(e, data) {
                 // self.$el.find(".fileupload_container").html($('<h2/>').text(data.result.name + " added successfully"));
                 self.$el.find("[name='v_name']").val("");
                 var video = new Video(data.result);
                 video_collection.add(video);
               },

               always: function(e, data) {
                 console.log("this always gets called");
                 self.$el.find(".fileupload_progress .bar").css("width", "0%");
               },

               progressall: function(e, data) {
                 var progress = parseInt(data.loaded / data.total * 100, 10);
                 self.$el.find(".fileupload_progress .bar").css(
                     "width",
                     progress + "%"
                 );
               }
             });
           }
         });

         return VideoForm;
       });

videocollection.js

       function($, _, Backbone, Marionette, app, VideoView, video_collection_tmpl) {
         var VideoCollectionView = Marionette.CompositeView.extend({

           template: video_collection_tmpl,
           itemViewContainer: "tbody",
           itemView: VideoView
         });

         return VideoCollectionView;
       });