Lead, Nyaniso Dzedze (who plays Muzi) and Director Scottnes Smith were actually fellow choristers (Nyaniso 1st Tenor, Scottnes 2nd Tenor) for the Wits Choir, the official choir of the University of the Witwatersrand, Johannesburg.
Nelson Mandela's image appears in three different places throughout the film. When Muzi is running late for the competition, at the final Hear ME Move competition and as a secret easter egg somewhere else in the film.
Despite a nation wide call out for actors to come audition, both Bontle Modiselle and Mbuzo Kgarebe (Who play Khanyi and Prince respectively) only happened to be there purely by accident. Modiselle was next door doing rehearsal for a commercial that was using the studio next door, Kgarebe was actually helping out as production assistant with the auditions. Director, Smith saw that they both had potential and was blown away.
Nyaniso Dzedze (Muzi) and Choreographer Paul Modjadji spent months and tried various combinations of the move Sizwile before the final move was found. Dzedze had previously been a gymnast and male cheer leader for one of Johannesburg's leading cheer leading troupes.
During an earlier version of the script, Muzi had a younger brother Junior, who had fallen in with Prince's crew and became addicted to drugs. The role was dropped however, in later versions of the script.