I'm using Steamza to watch movies since my Windows PC died and I now only have my tiny Chromebook - but it's designed to work with anything from iPhones to PCs:
streamza.com/i/W9kxWdM4d7
It's an easy intro to Torrent files. But is it legal? They say they are....
With a free account you can stream one torrent - one movie or TV show. With a paid account you can stream (or download unlimited movies to your device) - I think...