Backup_previous.zip -

“Being restricted to one backup and incrementals is not really a good idea. You should have older backups as well as the current one.” AskWoody

While there isn't a widely known professional software or movie with the exact name , this specific filename is a common convention for manual archive snapshots. It often refers to a "previous" version of a project or system that has been compressed for safekeeping. backup_previous.zip