In the opening scene of the movie, when people are singing aboard the steam boat, you especially see Sigge Fürst in the middle of the crowd. In the long shots of him, he's wearing a checkered tie, but in the closeups, his tie is polka dotted. At the start of the song, the man next to him, playing the accordion, is wearing a white cap, but by the end of the song, he's bare-headed.