Since I started working with ActionSript I’m searching for a way to export script-based animations and animations with nested movieclips as mov and never found a solution. Some weeks ago I found a tutorial on gotoandlearn.com which shows exactly what I need. Of course, Flash needs to konw how long the exported movie should be. Therefore you have to change the “Stop exporting”-option in the export settings to “After time elapsed”. And that’s all!