As far as the Oscar chances go for this movie, I think it will receive multiple nominations but will not win in major categories. Fincher is consistently recognized by the Academy and Reznor won Best Score last year for the Social Network (deservedly) and a repeat seems unlikely. The acting of Daniel Craig and Rooney Mara is solid but not Oscar worthy nor do I think they will receive nominations. Mara is on the short list for Best Actress but Craig is not on that list for Best Actor.
In case you missed it, the trailer for the Oscar show, is fantastic. Billy Crystal and other A-listers partnered with Funny or Die to make the promo.