Great film, being a fan of both DiCaprio and Scorsese it was like having sex for 2 hours straight. I was so intrigued and the film just pulls you in. Everything is perfect in it down to a tee.
If you want some other films with great endings, I might suggest Inception (I assume most people have seen it already,) or The Thing. The Thing is a great film and it's a shame to hear not many people have seen it, most likely I assume since it's from the 80s.