Royce kicks open a door that has a pneumatic door closer on it, and yet in the next shot the door quickly flies open and bounces against a wall.
The train at the Kharkov military base. The two red M44 type locomotives have only been in use in Hungary and Poland. They are built for standard gauge railways, and do not fit on the Russian gauge railways in Ukraine.
All scenes in Kiev were in fact shot in Budapest, Hungary. Some scenes even display famous buildings in Budapest such as the airport, the Szecsenyi chain bridge, the Gellert spa hotel and the royal palace.