Highly effective survival horror. Perhaps you need to be a Londoner (like me) to appreciate the ultimate percentile – it must have been so hard to achieve the sparse backdrop from a buzzing city that we see in the film.

If I were to criticise, the digital image quality is fairly low grade, but perhaps that is the DVD transfer I have. Having said that, the shot choices more than make up for this, just about every frame is really interesting.

A great movie, had me gripped.