When Black takes the gun from the guard's holster it is a Glock, but when White takes it from him and checks the clip it turns into a Sig Sauer.
When White puts the gun in the guard's hand it turns back into a Glock.
When White takes the gun to put it in the guard's hand, the blue light is on before the gun even touches the guard's finger for identification.
The group forces the sprinklers to activate, spraying the entire room.
After this, Brunette notices that her paper is missing.
When she says this (and all scenes with her thereafter) there are no sprinklers in the background, and even her burned page is dry.
However the scenes keep switching from sprinklers to no sprinklers until finally she leaves the room and the sprinklers are shown deactivating.
The bandage on Dark's heel is much smaller when she puts it on, than when Blonde later tapes it on her wound.
During the very first shot, which is zoomed in on the sink faucet, you can see a crew member with some equipment reflected in the very left part of the faucet.
When Black goes to punch White, and says "lights out"- when they discover that the lights turned on by voice commands, the lights turned off and back on, but were the plain white lights which they had already broken instead of the red lights beforehand.
