Popcorn Time, Movie Box, TorrentTv, Flixtor,... are many and varied our options for streaming through the torrent protocol.
By chance I found this add-on that works perfectly on the Raspberry Pi and allow uncomplicated access to an extensive catalog with 720,1080 and even 3D qualities...
I had already comment on some occasion these alternatives, but don't gave me the expected result.
The menus are loaded faster on a Raspberry Pi 2 with no overclock. I've tested with OpenELEC 5.0.6 and usually takes about 40 seconds with a 20 Mbps connection to load on buffer.
Download Add-on: github.com > jmarth/plugin.video.kmediatorrent - Source code (zip)