At the beginning, the Admiral Kuznetsov carrier is shown, without a hint of black smoke. In reality, the ship is known to be a heavy polluter and would not be able to move forward without emitting any smoke.
The opening scene places Yuliya's home and school in North Chertanovo district in southern Moscow. But the armored car that takes her and her classmates to school after the incident is marked for High School No. 1191 in Mitino District on the northwest fringe of the city, more than 40 kilometers away.