Continuity mistake: Near the end where Ben and Mike are going to trade the Premier of Melbourne for Judith Lucy, for about eight minutes the sky keeps changing between overcast and sunny. This is most noticeable when Ted Pratt is talking about the exchange to Ben Kinnear. (01:08:55 - 01:24:00)
Continuity mistake: As Mick Molloy and his partner chase the dead Magistrate's car through the shops you can see the night sky through the glass roof, even though seconds before you see that outside is a bright sunny day.