The easiest way to create a movie that streams well is to arrange the Score properly and use behaviors to control the playhead. Director downloads cast members in the order in which they appear in the Score. Try to arrange the Score so that events don’t make the playhead jump far ahead in the Score, where cast members have not yet been downloaded. For example, if you place a menu in the first frame of a movie and a user selects an option that sends the playhead to frame 400, the cast members for frame 400 might not be immediately available.

To avoid this problem, begin a movie with a simple introductory scene that contains a few small cast members, preferably vector shapes. You can use a streaming behavior from the Library palette to make the introduction loop until the cast members that are required for the next scene have been downloaded in the background.

While media elements are downloading, several behaviors included with Director control the playhead or a progress bar. While media elements are downloading. These behaviors make it easy to allow enough time for downloading to catch up with action in the Score.