Dogfight footage from the 1969 film Battle of Britain was seamlessly integrated with contemporary film footage using computer imagery and mastering to create the aerial sequences due to the prohibitively expensive cost ($10,000 per hour) of renting a real Spitfire. The scene of a train being attacked was the most expensive scene in Czech cinema history, costing more than the entire film Kolya. Brief scenes from the 1990 film Memphis Belle were also incorporated. Director Jan Svěrák played a number of roles, including practically all the crew members of an Allied North American B-25 Mitchell bomber in the scene where a damaged bomber is escorted.
