I just watched Crank. I think of it as a sex/drugs/violence orgy. Sure the action was great, but it's all built on a &$%*ing stupid base.
When I first saw the trailer it said that he was injected with a crazy Chinese toxin that will kill him unless he keeps his adrenaline levels up. The first question that came to my mind was "How did that happen to him?" The movie answers that in a petty retarded way. You see this right in the intro of the movie so I don't think it's a spoiler. Basically a bunch of guys wanted to kill him so they snuck into his apartment while he was asleep and they injectd him with it. A retarded monkey could figure that it's a fairly stupid premise. If you wanted to inject him with something to kill him (as oppose to actually killing him while he's asleep) why not use the classic tried & true shit?? Cyanide, hell even rat poison would have done it! The man was knocked out!
Fine, I let the beginning of the movie slide. I can suspend my disbelief and think "Ok they wanted to kill him ina creative way." Now at the end of the movie, the unlikely hero has his back turned to a villain who is holding a gun and a syringe filled with the "chinese shit".. Take a wild guess what the villain does.. He injects him with some more of the "chinese shit" with the intention of killing him. WTF??!?! Holy shit that was retarded.