It's basically just a website that searches different providers for a file and then plays said file. It is safe to use without a VPN (though still better to use with a VPN for general safety measure) as its the same as watching youtube or whatever... Hope that helps :)
sudo-flix: the new movie-web
After movie-web got taken down including all their github repositories, a fork called sudo-flix emerged....
The end of movie-web ( programming.dev )