WATCH SOURCE CODE.
DON'T look up anything about it, really, don't, I'm completely serious, don't watch the trailers, the trailers make the movie look stupid and they are full of spoilers, it's better if you have no idea at all what the movie is about going in, just go see it, it's totally worth it.
All you need to know is this:
1) Directed by Duncan Jones.
...Oh man, Duncan Jones is not a one-hit wonder, this proves it, he's two for two and he is going to be a man whose career I am going to enjoy watching for decades to come. DIRECT ME ANOTHER ONE, MR. JONES. MAKE DAVID BOWIE PROUD.
...Write-up of concert shenanigans to follow when I have had some sleep, oh god.