The original movie negative seems to be lost. The DVD version published in 2018 was produced with the help of a 1966 TV master. That's the reason why the Eastmancolor movie is only shown in black and white on the DVD.
Although Willy Rösner is listed in some sources as the actor playing "Bistro-Wirt", in the final version of the movie Rudolf Rhomberg can be seen playing the part.