Sergeant Hooper says that Pasha Verdinikov was shot with a 9mm caliber round, this round does exist. Both mm and caliber are methods of measuring a bullet:caliber can be measured in mm or inches.
At the 22.23 mark Joseph removes his cigarette to speak & blows out smoke, When he finishes speaking he puts the cigarette back in his mouth and as he lifts the lighter to the end of the cigarette it is clearly not lit.
The lip reader is able to catch the whole conversation between pasha and Grace despite Grace frequently facing away from the camera.