Continuity mistake: The close up of handwriting on the visiting card handed over to Gert at first does not match with the close up shown later.
Other mistake: When Tilly confronts the teacher Buelah in the classroom, thr letter R is missing from the alphabet across the top of the chalkboard. (01:10:00)
Factual error: In the football match between Dungatar and Winyerp you can occasionally see the railway line in the background. This is the Melbourne to Adelaide rail line in use today. The rail line has concrete sleepers, which were not introduced until the 1980's. They can be seen as they are whiteish. The Dressmaker is set in 1951.
Factual error: It's set in 1951 and has the song 'I'll tell my ma' by the Dubliners which wasn't written until 1963.