 In reality, Belyavsky had no criminal background whatsoever, and he improvised the entire scene by using cherry preserves he had borrowed from production assistants during a lunch break to simulate the blood.One of the film's best known comical scenes originated from an acting gaffe.While signing a written affidavit, prostitute Manka "Obligatsiya" asks Zheglov whether her nickname (Russian for government bond) is properly spelled with an "O" or an "A".