The original script written in 1966 by Vadim Trunin was significantly different from the final one shot in the film. According to that scenario, young people at the restaurant began to mock the four front-line friends, and a fight ensues. The former paratroopers easily come out of it victorious, but the police called to the scene take the side of young people (one of whom had influential parents). The police tries to arrest the four friends but instead the policemen become victims themselves. Film director
Andrei Smirnov had been picking actors for this film for a very long time. Thus, the role of the director of the plant Kharlamov was auditioned for by
Mikhail Ulyanov and even
Eldar Ryazanov.
Nikolay Rybnikov wanted to play the role of the simple locksmith, but
Yevgeny Leonov was stronger in the screen test. The character of accountant Dubinsky was conceived as an analogue to
Aramis, who would be played by the "classic" intellectual –
Innokenty Smoktunovsky or
Nikolai Grinko. As a result, Andrei Smirnov chose
Anatoly Papanov, who surprisingly combined softness and sentimentality with brutality and power. Direction of Mosfilm approved
Inna Makarova for the role of the former nurse Raisa, but upon Smirnov's insistence Nina Urgant was cast in the role. ==Music==