It needs more story. more depth. Not just stuff blowing up, gratuitous violence and idiotic sex scenes. However, I did like the concept though.
One of the few positive factors of this movie was its use of very effective music. Jefferson Starship's "Miracles" is an interesting example. As Statham was falling to his "death," the music helped make the scene look more alive.
So basically, this is not only a ridiculous action movie with lots of unrealistic violence, but also with a weak plot that makes it all seem kinda pointless.
Lots of blood and gore and just a little bit funny!
Oh and a really good soundtrack.