Vin's "Children of Men" earned a 4 on the "Tomatometer". Partly because it was "Children of Men", partly because it was Vin, and most assuredly for the editing of the fight scenes. That being said "4" is harsh and wrong and a collection of straight world reviews. PS: not all science fiction has to transcend the genre.
This is genre, it is chock full of cool things, it has the Belle Parkour Team doing the stunts -- and if you don't know who those guys are you haven't been paying attention. Did I mention Michelle Yeoh as a co-star? No? A 4 -- shame on your tomatometer. Check out the interactive folding map in the trunk and then you give it a four.