You can find matching files on platforms like OpenSubtitles . Movie Synopsis & Critique
If you are looking for subtitles specifically for the release, they are widely available across major repositories: subtitle Casanova.2005.720p.BluRay.x264-REVEiLLE
Because this is a standard BluRay rip, most English subtitles labeled for "720p BluRay x264" will sync perfectly without manual adjustment. You can find matching files on platforms like OpenSubtitles