In an interview shown at the end of the movie, Bergmann speaks about the case from her adopted home in the United States.
A ticket inspector had informed Detective Sergeant Sömmering that a woman sitting on the train was actually a man.
' But five minutes later she said to me, 'It is a girl, after all.'" The parents looked at their youngest child.
They had their doubts, but decided to take the midwife's word for it.
The Ratjen case is one of the biggest sporting scandals in which a man dressed in women's clothes managed to fool his rivals.
Gender researchers have also taken an interest in the affair.