Honestly, I can't remember what the very first foreign film I saw was; however, I can remember the first that really moved me:  Rules of the Game.  I had seen a few foreign films before that--including some, like M, that I now love passionately--but they hadn't affected me much, primarily because I didn't understand them.  (Of course, I didn't wholly understand Rules of the Game then either--and I'm sure I don't now either.)

I'd also like to note, while admitting that I know nothing about acting, that I find Renoir's own turn in this film to be one of the most charming in the whole of the cinema.  