An often over looked tool which can often come in handy, especially for those that want to rotoscope but their intimidation leads them away from going to After Effects to do so. What happens when you export in filmstrip format is that you create a very long picture of each frame in your movie. From here you can edit frame by frame, which may be a tad tedious to those fluent editing dynamically in After Effects.
From here on out the rest is up to you, anything you can think of to edit a single picture now you can do to many, obviously this is time consuming work, but if you have plenty of patience and little life then this will be perfect for you till you get fluent working in After Effects or a similar program.