If you can't re-shoot the video, not all is lost -- you can simply rotate the clip in Adobe Premiere Elements. Add the clip to your project's timeline and select it. Click the "Applied Effects ...

To rotate a video in iOS 13 follow these steps ... then you should also check out Apple’s Clips app. Read our How to use Clips guide to get you started.

This software provides you a Rotate function to change the orientation of multiple videos at once. Apart from that, you can also find other editing features in it including crop, clip speed ...