About 35 minutes into the movie, a gun falls to the floor and It is not picked up. A few moments later it's in Markus's hand.
At 1:33': a pink towel is back hanging on the wall-mounted rack.
17 minutes into the movie, Markus fixes the problem of why his deceased wife's modern Subaru Forester did not start. The dirtiest fuel filter I've ever seen in my life. The filter in his hand is for an old non fuel injected car. It would never withstand the pressure of a modern fuel injected car. The proper filter would look like a steel can with high pressure connections not a clear plastic canister with low pressure, slip on rubber hose connections.
In describing their computational algorithm, Lennart refers to megadactyly as clubfoot. Megadactyly is a grossly enlarged finger or toe, not clubfoot. Clubfoot, or congenital talipes equinovarus, is a bone disorder causing the feet to turn inwards, downwards or in an arch.
The city of Viciebsk from the 'old Ukrainian legend' is actually located in Belarus, about 500 km to the north from the northern border of the Ukraine.
At approximately 40': Lennard does not clean right away the handle of the drawer he just opened to get the "DNA dissolving chemical agent"