One specific search refinement you may encounter is
Intensity was originally broadcast as a two-part mini-series. Some subtitle files are split into two separate files (Part 1 and Part 2), while others are merged into one long file for the full 3-hour runtime. Ensure your subtitle file matches your video file's structure. Intensity 1997 Subtitles
And if you play it, the subtitles won’t translate the film. One specific search refinement you may encounter is
This is the most comprehensive source. Search for "Intensity (1997)" or "Dean Koontz's Intensity." It often hosts files in multiple languages, including English, Spanish, and French. Intensity 1997 Subtitles