In the southern town, a gang of "currency traders" is operating, led by the Chief and his assistant Kozodoyev. A modest Soviet clerk and an exemplary family man Semyon Semyonovich Gorbunkov goes on a foreign cruise on a motor ship, on which Kozodoyev also sailed, who must pick up diamonds in one of the eastern cities and transport them in a plaster hand. But due to a misunderstanding, instead of a swindler, an unsuspecting Gorbunkov falls in the appointed place, and a precious plaster is imposed on him. That's where it all starts...
You can now watch The Diamond Arm online on the following streaming providers in the United States.
| Directing | Leonid Gaidai | Director |
| Writing | Yakov Kostyukovskiy | Writer |
| Writing | Leonid Gaidai | Writer |
| Writing | Moris Slobodskoy | Writer |
| Sound | Evgeniya Indlina | Sound |
| Editing | Valentina Yankovskaya | Editor |
| Costume & Make-Up | Mariya Chiglyakova | Makeup Artist |
| Camera | Igor Chernykh | Director of Photography |
| Costume & Make-Up | Konstantin Savitsky | Costume Design |
| Sound | Aleksandr Zatsepin | Original Music Composer |
| Art | Feliks Yasyukevich | Production Design |
| Camera | Vsevolod Yakubovich | Camera Operator |
| Sound | Emin Khachaturyan | Conductor |
| Art | Yuri Yepishin | Assistant Director of Photography |
| Art | Aleksandr Makarov | Production Design |
