Okay but not great, sadly. Certainly didn't pack the punch that either of Boyle's last two films (Sunshine, Slumdog) did. Emotionally I felt it fell flat when it was supposed to soar. Franco was fantastic, but he wasn't enough to elevate the film, which frankly felt a bit lacking on every front. Boyle's direction in Slumdog was very flashy, but I never felt like it went too far, and suited the film well. Here, there is so much style over substance and fucking around that I was wondering what Boyle was trying to accomplish, and sometimes I felt like he was just trying stuff for no other reason than to be throw some technical wankery into the film (shots inside a water bottle straw, really?). The premise is simple, but I didn't fell the screenplay really did any sort of job for making me feel for Ralston's plight. The whole thing felt so shallow. Into The Wild was much more successful in tackling similar subject matter.
I dunno, first impression is that its the worst thing Boyle has done.