According to major media, 'Rännstensungar' was a heartwarming film needed at the time and was loved by a large audience. The film featured Adolf Jahr, an extremely popular actor, in one of the leading roles. In the film, Little Ninni, played by Birgitta Hoppeler, sat in her wheelchair and sang 'I min lilla lilla värld av blommor', winning everyone's hearts.
Hoppeler's real name was Birgitta Hoppeler, and she was predicted to have a brilliant future in film and theater. However, it is unknown why Birgitta Hoppeler did not pursue a career in film and theater as predicted. The specific other plans life had for her after her film role remain unclear.