I've dug into this topic a lot, so I can give you a solid run-down. If you mean the big-screen movie titled 'Priest' from 2011 (
the one with Paul Bettany and Maggie Q), it’s a loose adaptation of a darker Korean graphic tale — the filmmakers used the manhwa more as inspiration than as a beat-for-beat source. That particular movie is usually easy to find online: it's commonly available to rent or buy on platforms like Prime Video, Google Play, iTunes, Vudu, and YouTube Movies; it sometimes turns up on subscription services depending on your region. Older or more arthouse priest-related films are scattered across different services, so availability really depends on where you are.
If you're interested in priest characters and religious adaptations beyond that single title, check out films like '
The Exorcist' (adapted from William Peter Blatty’s novel) or 'Silence' (adapted from Shūsaku Endō) — both crop up on streaming platforms or can be rented. Free ad-supported platforms such as Tubi or Pluto occasionally have classic faith-and-horror titles, while Kanopy or Hoopla (library-
linked) can surprise you with Criterion or indie picks. Subtitled versions and different cuts (director’s cuts, restorations) might only be on premium services or physical releases, so don’t be surprised if you need to rent the remastered Blu-ray for the best transfer.
I tend to hop between rentals and my local library streaming, depending on what mood I’m in — 'Priest' scratches the action/horror itch, while 'Silence' sits with me for days after. Hope you find something that thrills or haunts you in equal measure.