X-Men: Days Of Future Past Official Trailer

Hugh Jackman, Patrick Stewart, Sir Ian McKellen, and Jennifer Lawerence (among others) all star in the new X-Men movie. As characters from the original "X-Men" film trilogy join forces with their younger selves from "X-Men: First Class," in an epic battle that must change the past -- to save our future.

I'm so confused, but it looks awesome.