I went to see it last night. It was amazing! The story was pretty solid for a pure action flick and the action sequences where awesome with some very original twists and moves.
While I was watching it I was thinking it was like a modern version of Commando. The Schwarzenegger cameo was perfect aswell any more of him and it would have been too cheesy.
it is a 15 but there is still plenty of decapitation and limbs being sliced off etc.
This gets 5/5 from me!