Watch VoirFilms. Brothers Helmut and Wolfgang Kaminski live on opposite sides of the still porous Iron Curtain: Helmut works as a reporter for radio in the American sector, Wolfgang as an SED functionary for the construction of socialism. His father Otto was a brigade leader at the large construction site in Stalinallee, where the demonstrations began on June 16. On June 17, 1953, the East Berlin workers formed an uprising.