The beam that has "fallen" on Wai Lee originally appears to be composed of solid concrete. Later, when Malek is talking to her, it is clearly made of perforated ceiling tile.
Malek looks at a clock on the wall which indicates 2:02. A short time later Barney looks at his watch which indicates 1:03.
When Malek is arming his device the control grip sometimes displays the model number (NAF 1173-2) but in other shots it is missing the number.
The plane shown overflying is a passenger jet and not capable of supersonic flight. If it were a supersonic aircraft Bolkonsky would not have heard the aircraft before the sonic boom since it would have been traveling faster than its own sound.
The phone on Gen. Brenner's desk, seen in close-up, clearly has standard U.S. markings including "Area Code" and a seven digit number. European telephone systems are numbered differently.
As they lift the unconscious Malek off the bed, he sits up and waits for them to support his weight.
In the medical room a jar has the English word "applicators". All other wording seen is a made up to look foreign, though it is just a made-up nonsensical language.