When John is investigating in the bathroom, some shots of the shower show the walls be solid black and others mostly the beige tile color.
Constantine's driving licence on line 5 gives his driving licence number as CONST6610-1-ABFC121-1, however this is not a correct UK driving licence number which should consist of the first 5 letters of his surname and then his date of birth jumbled followed by first 2 initials of forenames (if only 1 initial the second will be a 9), then computer check digits (in case there is somebody else with the same name and date of birth), then a space and the issue number. There are no "-" in the number and the only space is between the driver number and the issue number. Constantine's driver number would more likely be CONST805102J99AB 35.
To distract the security of the mine, Constantine uses a nearby backhoe loader, dumping the rocks on its bucket. But the lever he uses to do that is hand break, not attachment control lever.
Other inaccuracies on Constantine's driving licence:
The address should be the full street address.
There should be a signature.
There should be a hologram across the front of the card.