Dipping into chemistry and pentagrams and the earliest forms of electricity, the plot is all over the place, and I'm not entirely certain I understand how it all fit together in the end. But the story really just provides a vehicle for the action and the fantastic character interactions, one of which delivers slightly better than the other. While some action setpieces, like a fight at a shipyard and the final race against the clock, are brilliantly structured, the fight choreography gets chopped up into bits, with Ritchie cutting too quickly for the audience to see a punch or a kick all the way through. The editing often works directly at odds with Downey Jr.'s physicality, as he throws in a funny movement or a particularly sweet punch, only to see it lost entirely to needless slo-mo and quick cuts.