Continuity: In the scene where Molly and Daisy meet their mother again they run towards each other through a light forest. Then there is a cut against the evening sky where they fall into each others' arms, and it's an open area with no trees nor bushes.
Factual error: In the evening check at the dormitory, when the girls are found missing, the nun calls Daisy Kalibil. In real life the 8-year-old Daisy was promised to a man named Kalibil whom she married later, but at that time she was still Daisy Craig.