A really great concept that is generally delivered pretty well. But the biggest pitfall for this film is the visual style. It has that early 2000s feel, upped contrast, overly saturated, otherwise bland visuals. Which is bizarre to me considering that the director had previously made moon, which obviously had an excellent visual style with the use of miniatures etc.

Now imagine if they threw in visuals queues throughout this film to demonstrate that things weren't quite real, like the train itself being a miniature for example?

Other than that I think it's really good, I like the drip feed plot narrative a lot. The ideas are there, Gyllenhaal is good and it's definitely compelling throughout.

I do think though, that with surreal 'simulation' sci-fi, you need some good visual material to chew on.