Popcorn time is getting all the attention but it isnt the only one out there or even the most popular....as I noted in a previous thread XBMC and videomix both do the same thing essentially and both run on android devices.
the only difference being they stream from file lockers instead of bit torrents but a quick look at videomix or 1channel or mashup under XBMC will quickly give you the movie poster, a synopsis a cast list and a one click watch this movie/tv show ability.
most of these dont even bother with porn because thats already all over the tube sites
if you want to see what I am talking about
http://www.thinstallsoft.com/videomix-app/
http://www.xbmchub.com/blog/
http://addons.xbmc.org/category/video/