Backstage allows you to upload unlimited photos, videos, audios, and documents to your account. But sometimes you only want to share something in an application, and not have it appear in your public profile. That's what Media Locker is for. All your media is stored here, but you decide whether you want to make it public or keep it private. Media Locker also gives you the ability to crop your photos, as well as add captions to your media that Casting Directors will see if those items are included in an application.