Privilege of watching movie
Downloading first run movies from the internet for free is illegal. They don’t tolerate it and you will be caught eventually. Losing your internet for life is painful enough. Do you also want to pay thousands of dollars for the privilege of watching that movie? Just go the theater. When you download a movie file using a file sharing program one of the requirements of the peer to peer software you used is that you make that file (and all others) available to other users of the system. This means that in the middle of the night someone half way across the world can find a copy of the latest movie upload on your hard drive and download it direct from you.
At this point you become a pusher of the movie, and the copyright infringement groups track you down through your IP address. They find out who owns the IP address (your internet provider) and they require your ISP to turn off your internet connection. If you sign that form and get caught upload file to another illegally, the punishment usually involves the permanent cancellation of your internet service, and the release of your name, address and usage logs to the authorities. Think about that. They will then know exactly who you are, you will no longer be a number, and they can sue you in court.