http://www.imdb.com/list/aU7Q-mZ0euo/
IMDB. They are one of the most credible sites for movie information. Just a heads up, though, this list is slightly outdated, so some of the movies are no longer on Netflix Instant, but I would still recommend watching them when you next get the chance.
http://mooseradio.com/best-horror-movies-to-watch-instantly-on-netflix-trailers/
While I wouldn’t necessarily categorize “Let the Right One In” as horror, I do recommend that you give it a chance. Overall, this is a strong list for those of you needing your horror fix instantly satiated.
http://www.pastemagazine.com/blogs/lists/2012/05/the-50-best-movies-on-netflix-instant.html
This list completely nails it. I’ve seen most of these movies myself and can vouch for them. The films I haven’t seen I’ve either heard good things about, or are a complete mystery to me. Either way, I’m using this list for my benefit as well. You’ll find this list comparable to IMDB’s list on credibility.
http://thecorp.org/blog/2013/11/must-watch-netflix-movies/
This one is a little different than the others. It’s a mini-Academy Awards for Netflix in my perspective. The list is the writer’s favorite movies from the listed categories like Best Documentary or, my favorite, “Best Completely-Random-But-Now-My-New-Favorite Move.” It’s worth a look.
http://www.pajiba.com/guides/the-10-best-recent-releases-on-netflix-watch-instantly-2013.php
It’s one of the most useful lists here. Maybe you didn’t want to spend money to go see a specific move and were waiting for it to show up on Netflix Instant to finally watch it at home with no extra effort made. These lists keep you updated. I will also be benefitting from this list for the very reasons I’ve just mention.
If the above mentioned links weren’t helpful enough for you, hopefully the rest of the links below can provide you with more information.
http://www.complex.com/pop-culture/2013/07/best-movies-netflix-streaming-right-now/
http://fansided.com/2013/11/28/thanksgiving-2013-best-movies-watch-netflix-instant/
http://www.vulture.com/2013/11/best-of-netflix-streaming-hulu-movie-dystopias.html
http://www.neontommy.com/news/2013/08/top-ten-movies-netflix-worth-watching