Premise was interesting. Balance between the cerebral and "action movie" jarring. Worked best for me when all three levels of reality were working at the same time and they all had there own pace and rhythm. This is when the editing was at it's best. No need for so many shoot out sequences. Cheapened the overall impact. great cast with exception of Ellen Page didn't have the weight for me. Not believable. Leo up to his usually bag of expressions and limited emotions. Visually very compelling.