This is a really long trailer, bolstered by some classic rock.
Honestly, I'd watch Sandra Bullock (Gravity) in just about anything, but it worries me when the music overshadows so much of the trailer. I'll consider that a measure of excitement and nothing more. That said, she's playing campaign manager "Calamity" Jane Bodine and Our Brand is Crisis (terrible title, but it's from a documentary with the same name) is backed by George Clooney and based upon a real woman. Bullock is great at this stuff.
It's about Jane's return from self-imposed retirement to represent a Bolivian presidential candidate and facing off against her biggest personal opponent (Thornton). There are a ton of Oscar winners involved on all levels and it's likely this one will earn some people new nominations. Take a look!