1) My personal favorite is the original Karate Kid (probably obvious from my screen name!)
2) in terms of the “classics,” it’s tough to pick just one great movie. I think of very minimalist movies as being some of the greats— like “”12 Angry Men,” which was basically all in one room. Or, “Rope,” which Hitchcock filmed with 10 long takes. One more recent similar movie that I have come to really appreciate is “ Castaway”— amazing how Tom Hanks could give such a compelling performance with so little dialogue.