I took the day off yesterday to see Fritz Lang's Metropolis. It was magnificent. This film was released in 1927 before sound in movies and yet in many ways holds up next to other sci-fi movie greats.
Its been re-released after being digitally restored with its original orchestral soundtrack and all its surviving footage. (One quarter is believed lost at this point.)
I saw it at the Ziegfeld Theatre in midtown Manhattan which only ads to the experience. The Ziefeld is one of a near dead breed of movie theatre where it is more about theatre then it is movie. Massive single screen, carved ceilings, crystal chandeliers, brass art deco sconces, and floor to ceiling velvet curtains that drawn as the lights dim. They just don't make them like that any more.
I highly recommend you get to one of the 6 big screens in the States if you can.