Look for the .srt format, which is the most widely compatible file type. 2. How to "Install" the Subtitle
Simply click and drag the .srt file into the video window while it's playing. 3. Troubleshooting Sync Issues
These are separate files (like the .srt you are looking for) that you can turn on or off.
Some versions of The Northman might already have subtitles "burned" into the video for the Old Norse dialogue scenes. If you see double subtitles, you may need to disable your .srt file during those specific scenes.