Heintje - Einmal wird die Sonne wieder scheinen When the bank clerk Klaus Helwig is arrested on suspicion of embezzlement, his son Heintje, whose mother died at birth, comes to his grumpy grandfather's house. Heintje manages to win his heart and prove his father's innocence.. Details Casts Galleries Posters Title Heintje - Einmal wird die Sonne wieder scheinen Release Date 1970-03-25 Runtime 01 Hours 38 Minutes Genres Family Music Production Companies Allianz, Terra-Filmkunst Production Countries Germany Heintje Simons... Heintje... Heinz Reincke... Klaus Helwig... Gerlinde Locker... Renate Ahrens... Paul Dahlke... Friedrich Wilhelm Berthol... Helmut Förnbacher... Robert Engelhardt... Christiane Rücker... Roberts Freundin... Jan Hendriks... Willi... Agnes Windeck... Mrs. von Schleinitz... Martin Jente... Quintus... Rudolf Schündler... Schiller... Ralf Wolter... Man on Fair... Friedrich Schoenfelder... Comissioner... Willi Rose... Gärtner... Robert Meyn... Engelhardt... Dieter Kursawe... ... Rolf Möbius... ... Original Size (1280x720) Original Size (1000x1500) Original Size (836x1189)