Getoev's character wears the jacket, which belongs to the producer of the film Liza Chukharova.
The final shot of the film was made at about 5 AM. The dialogue in the original screenplay takes place at the same time.
The film had a screenplay in advance, and the dialogue on screen is exactly the same one which was on paper.
At the end of post-production, when CG meteorite was almost finished, the real meteorite fell on Chelyabinsk (Feb. 15, 2013).