Stremio is an APP that downloads movies and series from torrents while you watch, actually it just shows you things from addons you add to it, technically you can add addons from paid services like apple, and amazon video, but you can also add addons like torrentio that aggregate a lot of torrent sources.
It integrates with IMDB and download subtitles automatically from open subtitles, it is very feature complete, you would probably just have problems with too old or niche movies that have a low number of seeders but you can always right click on the moving while running, copy magnet link and put in an torrent downloader like qbittorrent.
Just take care with your vpn, make sure you check the option of your VPN to shutdown the internet in case the VPN disconnect automatically (usually is default) so you don't have the risk to accidentally download part of your torrent out of the VPN. As long I know US is crazy when talk about piracy.