Of course, it should be pointed out that Dorothy didn’t really kill anyone. Her case is a genuine ones and, were she Jewish and in a time/place where all the laws were applicable, she would NOT have to go to an Ir Miklat.
Nonetheless, it’s an interesting connection between the two topics.
And, for the record, the inspiration for the movie was the book by L. Frank Baum. Perhaps you should ask if the book was inspired by the concept of an Ir Miklat.
The Wolf