code: def getMovie():
          
          if not XLoaderWidget.MOVIE:
              filename = projexui.resources.find('img/ajax_loader.gif')
              XLoaderWidget.MOVIE = QMovie()
              XLoaderWidget.MOVIE.setFileName(filename)
              XLoaderWidget.MOVIE.start()
          
          return XLoaderWidget.MOVIE
docs: Returns the movie instance for the loader widget.
          
          :return     <QMovie>