I enjoyed it, but its basically a popcorn muncher of a film.
The main stars are nice eye candy and i think they did the dagger effects well.
However as expected the plot is flimsy in places but i found that Jake and Gemma worked together well and there were a few funny moments.
(does any one else remember Mortal Kombat: Annilation?).
To be honest, I never finished the first game on Gamecube some years ago, so I don't know close to the game it was.