Deadpool
Though the basic concept is perhaps borrowed from some other places, this sequence does a great job of visually setting up the story and the tone at the same time, while maintaining incredible visual interest. Why does this man have a cigarette lighter flying out of his mouth? We have to wait and see.
The Jungle Book (2016)
The recent update to the Jungle Book was visually stunning, but I wasn't expecting this fun mini-telling of the movie at the end. In addition to summarizing the film, it also places it (literally) in its literary roots.
Thank You for Smoking
I like skeumorphism if it's done well. And this one is. I'm not sure if this actually counts as skeumorphism, but I'm going to consider it as one.
Mars Attacks!
The title sequence is better than the movie in this case. The titles brilliantly update the 1950s saucerpunk films like Earth vs. the Flying Saucers and It Came from Outer Space! The color palette and the somewhat ridiculous-looking fleet of flying saucers tells us what kind of movie we're in for (even if the movie itself didn't quite live up to the promise.)
It's a Mad Mad Mad Mad World
I mean, Saul Bass. That's all I have to say. As I noted earlier, the title sequence for the series Feud is fantastic, as is that of Catch Me If You Can, but neither of those would exist without the pioneering design work of Saul Bass.