In the script, when Jane and Mrs. Ross are rescued, Jane was supposed to burst into tears and fall into Phryne's arms without saying anything. Essie Davis and Ruby Rees didn't feel this was right for Jane's tough character. Ruby Rees came up with the idea of explaining that Mrs. Ross needed Jane's help, with this admission finally causing Jane to break down.
In one scene Dot is shown putting curlers in Jane's hair. In the next scene supposedly taking place the next morning, Jane's hair clearly hasn't been curled