As somebody who had not heard any of this before, it became a curious phenomenon to sit and watch a film and slowly have the realities begin to click into place.

One of those movie experiences that is so good it makes you realize you've been grading everything else on a curve.

Yes, absolutely, there is fun to be had, as well as many, many things to go boom, all amid an atmospheric urban jungle.

After playing with our expectations, this turns out to be a very different sort of film.