Sergio and Sergei (movie, 2017)

In 1991, the USSR is falling apart and Cuba enters its hardest economic crisis. Sergio, a professor of Marxism who can't provide for his family, and Sergei, a Soviet cosmonaut stranded in the Mir space station, share a common passion: amateur radio. Through this hobby, both men will be able to help each other in facing the dramatic changes of their countries.