As with Transformers, just having two sets of awesome bad guys kick the shit out of each other is not allowed. As is releasing what would be an awesome 30 minute flick in the pictures. So we have to mix in some human element and plotted story.
Paul WS Anderson gets good action fodder in his flick and knows his audience so this is simple stuff. TBF if it wasn't for the PG13 rating restricting the gore and the, let's be honest, pretty ropey first face off for the two protagonists then this is a pretty great attempt as far as shallow action movies go.
Mind you, I've seen it three times now, so it might be a good time to retire it from viewing. Nah can't do that. Colin Salmon and Henriksen being in this will always make me think it's worth another go.