Here's a list of some really good movies with a socialist, Marxist, or leftist sort of message, or otherwise just a movie that comrades should see. Some more or less overt. I have refrained from listing documentaries:
Spartacus (based on novel by member of the CP, screenplay by blacklisted CPer, and an AMAZING film!)
Land and Freedom (people have already promoted this one)
Bread and Roses (and this one)
Carla's Song (another Loach movie, deals with the Nicaraguan Revolution, very interesting plot moves)
The Wind that Shakes the Barley (comrades already mentioned this one)
Reds (starring Warren Beatty, pretty good movie about John Reed, author of
Ten Days that Shook the World)
1900 (Novecento) (stars Robert Dinero, deals with the rise of fascism and its overthrow through the eyes of two characters, a young landowner's son and a peasant-turned-Communist)
La Commune (VERY long, interesting style, about the Paris Commune)
A Very British Coup (comrades have already mentioned this, and I'll review it for you. Very good. Interesting look at limitations of "electing" the Revolution.)
Goodbye Lenin (
http://www.marxist.com/goodbye-lenin-film-review.htm)
BBC's documentary series on the Spanish Civil War (I know I said no documentaries, but this is a MUST SEE. It has the limitations of a documentary that strives to be "objective," but has lots of great interview and historic footage)
The Great Dictator (Chaplin's parody of Nazism and fascism, very interesting speech at the end calling for the tearing down of all national barriers and for a universal brotherhood of man)
In Modern Times (another Chaplin movie, contains a criticism of the alienating effects of labor under capitalism and a very funny scene involving a workers' demonstration)
Pan's Labyrinth (not as politically astute as Land and Freedom, but stylistically interesting, the director has another film set in the Spanish Civil War period, but can't remember the name. it's more of a horror, if memory serves)
Battle of Algiers (Very good movie about the national liberation struggle in Algiers against the French)
Libertarias (Another movie about the Spanish Civil War, this one from the anarchist perspective, slightly politically confused, but high production value and an interesting film all things considered)
Persepolis (interesting cartoon about the Iranian Revolution, features a scene where the main character, a daughter of Iranian communist, chooses Marx over God in a dream)
Salt of the Earth (blacklisted US film made by the United Mine Workers if my memory is correct, very good union meeting and worker demonstration scenes, deals with immigrant workers in struggle)
Land of the Dead (yes, watch it and you'll understand)
The Assassination of Trotsky (not the greatest film, but if your a fellow trot, you should probably see it anyway)
Battleship Potemkin (very good movie about the rebellion in 1905)
Strike (actually, this is my favorite Eisenstein movie)
Metropolis (German silent film, clear class message)
October: Ten Days that Shook the World (Make sure you don't get the Stalinist version ;) )
and I have to represent for the WIL in the US even though it is not at all political (I am the Walrus!):
Big LebowskiI would also add that some McCarthyist films make for good comedic viewing. I will mention one documentary, Socialism on Trial, which comrades can view on Google Video. It is about the fight of the Liverpool councilors in the 80s.