An excellent little sci-fi thriller that I loved practically everything about. Jack Gyllenhaal is fantastic in the lead role, the ing cast is all wonderful, the action scenes are both tense and awesome, the pacing is quick and never drags, and the tone is perfect, with just the right amount of humor. Crowd-pleasing entertainment at its best, and apparently a sequel is in production, which I am very excited to see (if it actually happens).