How do I split a movie clip with actionscript?

I have a horrible feeling its not possible, but I would like to know if its possible to split only part of a movieclip using Actionscript using either the emptymovieclip, or duplicatemovieclip command, rather than the entire thing.

In other words is it possible to duplicate only a specific frame range of an existing movie clip to a new empty one?

The reason I ask is because I want to create a kind of online video editing application in flash, where users can crop parts of a preselected video, basicly a trim tool.

Any help would be greatly appreciated. :smirk: