This page shows you the list charts. By default, the movies are ordered by how many times they have been marked as a favorite. However, you can also sort by other information, such as the total number of times it has been marked as a dislike.
I went through http://www.icheckmovies.com/movies/?sort=officialtoplists and found what movies were on USA Netflix Instant between August 4, 2013 and August 19, 2013.
218 films on 4 or more official top lists. 218/1830=11.9%
Expiring soon: Scarface (1932)
Supposedly coming soon to Instant: Memento, Donnie Darko, Downfall, Saturday Night Fever, Men in Black, 28 Up, The Purple Rose of Cairo
Note: Oldboy is on Netflix but it is a dubbed version, which many find disappointing. EDIT: FIXED!
All 5 films in the Fantomas series (dir. Louis Feuillade) are on Instant.
I plan to make a new version in a few months, but will not update this at all because I want to compare it with the later version.
Recommended sites for Netflix users: GoWatchIt.com or CanIStream.it (both let you search Netflix and many other sites to see where a movie is streaming), reddit.com/r/netflixbestof and InstantWatcher.com (see what is new to Netflix and what people are adding to their queue).
NEW LIST (made by Crisco B.): https://www.icheckmovies.com/lists/netflix+instant+movies+1plus+icm+official/crisco+b/
This list is culled from the official iCM foreign language lists (Italian, French, Russian, Latin, Japanese, Korean, Chinese and Indian). All listed are currently available for Netflix Instant streaming
The movies in the most lists on iCheckMovies which are currently streaming on Netflix Instant watch. Right now these are all the movies in 15 or more lists. I plan on expanding this later.
This list used iCM user zythux original list as a base source, available here: http://www.icheckmovies.com/lists/icheckmovies+-+movies+that+appear+in+at+least+15+official+icm+top+lists./zythux/
The films from the top 100 highest rated movies of all time from Rotten Tomatoes that are currently streaming on Netflix Instant in the United States. Thanks to bcacace, who originated and maintains the source list on IMDb (see source link at bottom).
Here is the link to the complete top 100: