Since you bought it, in theory you’ve supported the creators. Pirating it is 1000% fine in that case (or in any case)
In reality all the people who actually worked hard to make the film has been paid long before you bought it and the only creators getting the money are the owners of the companies. Unless you are buying from the creators source.
If the release is on Deezer, you can use deemix and you can get a arl with some easy googling