My favorite is still A Room With A View. Out Of Africa is an excellent movie as is The English Patient. I realize not everyone is into this romantic period drama genre but when you talk about acting, dialogue, take my break away cinematography and screenplay/direction - these movies really do have it all. I also realize they are based on actual books but there's something about a fabulous book that will turn out a fabulous story too
In terms of new movies, I really think there are so few good ones being turned out these days. It's only blockbusters/sequels and a zillion series on Netflix/cable shows. I don't really have expectations these days of any truly excellent movies. There's definitely good flicks though but soooooooo far and few in between.