This appears to be a release title for a French fansub of the 2021 film , starring Hugh Jackman.
: One of the largest databases; you can filter by language (French) and search for the specific release group if it's listed. subtitle REMINISCENCE.2021.SUBFRENCH.FANSUB.WEB...
You can typically find these subtitle files (usually in .srt format) on community-driven subtitle repositories or fansub forums. Since these are often hosted on niche sites, here are the best places to look for this specific version: This appears to be a release title for