Memento is one of the best movies that I've ever seen. Its really a great story, but the way it is filmed is what sets it apart from other films that are similar to it. I think its one of the more underated films. I almost never see people talk about this film when talking about the best movies of all time. Leonard, the main character, is one of the best characters that has ever been thought of. It's one of those films that I had to watch twice to fully understand. I would recomend this film to anyone who liked movies like Fight Club, The Machinist, or anything of that nature.On Nolan, he is greatly underated. I think part of it is that he hasnt directed a ton of movies. He's really only directed 5 films. Memento, Batman Begins, Insomnia, The Prestige, and Following. I've not seen Following, but from what I've heard and read from reviews, it was a pretty good film. He's also directing the rest of the Batman movies, at least 2 more if I'm correct.