Crank ROCKS! I LOVE this movie! Don't expect much realism, but, hey this is an action picture and it doesn't get so far into the silly realm of unrealistic as some others can.
The main character has been given a lethal poison and has an hour to live. During that hour he must get his revenge, say good bye to his girlfriend, and go out with style.
He does all three. This film starts strong, grabs you by the ***** and keeps going to the end. It has some good funny parts as a bonus. It got a bit unrealistic at parts but was forgivable because the action was in your face and the story was good.
If you are an action fan: Worth a rental. Worth a buy!