Thank you At the minute, all I've got to go off of is a mixture of the movies my parents watched while they were growing up, along with what various blu-ray forum members recommend (think Battle Royale is the only foreign film I've seen mentioned a lot on there) so if you've got a bunch of films I should check out, then by all means shoot man.
Any U.S. films you'd recommend would be cool too.
Das Kabinett des Dr Caligari is probaly THE German film. Tokyo Story is amazing. I mentioned it above, but 12 Angry Men is, to me, one of the best classic movies. Better than Citizen Kane or Vertigo even.