If you own the physical , it already includes "solid features" such as: English SDH and multiple international subtitles. 29 Deleted Scenes (over 30 minutes of extra footage).
: Often provides simple, well-timed English subtitles for BluRay rips. Disc-Based Features subtitle T2.Trainspotting.2017.720p.BluRay.x264...
Searching for subtitles for —specifically for the 720p BluRay x264 release—is best done through dedicated subtitle repositories. This specific release (often linked to groups like SPARKS or similar) typically requires an external .srt file if one isn't already muxed into your video. Subtitle Resources If you own the physical , it already