How long have you left it?
Movie files by nature are quite large, so take some time to back up, often getting “saved for later” and then done over quieter times when the machine it perhaps not so busy.
Also are these files being accessed by anything else (e.g. a media player, or an indexing service) as files which are accessed or open in another application cannot be backed up until they are closed/released. Smartware doesn’t have the ability to use a shadow copy like MS Backup (and other similar applications) sometimes do.
