Subtitle — Black.widow.2021.1080p.br.x264.aac.6ch...

A community-driven site where you can search by the exact filename to find matching timings.

If the audio and text don't match up exactly, you can use these tools to fix the "offset": subtitle Black.Widow.2021.1080p.BR.x264.AAC.6ch...

Use the H key to delay the subtitle or G to speed it up while the movie is playing. A community-driven site where you can search by

One of the largest databases; it allows you to filter by "Blu-ray" sources specifically. or understand this specific release

A free, powerful tool if you need to permanently change the frame rate or offset for this specific 1080p BR rip.

Searching for the exact file string typically leads to subtitle repositories and media databases. If you are looking to find, sync, or understand this specific release, Release Technical Breakdown