Place both the video and the .srt file in the same folder.
Since you have a specific release ( 1080p.WEBRip.x264 ), search for a subtitle file that matches that exact name to ensure the timing is synced correctly. subtitle It.Chapter.Two.2019.1080p.WEBRip.x264-...
Yes, It Chapter Two is available to watch via streaming on Hulu and HBO Max. Place both the video and the