Other mistake: The red rescue helicopter which is approaching and crashing is a Jet Ranger while the model filmed later on the crash site is a MBB BO 105. Most obvious are the differences in the landing skids and the front nose of the cabin. I guess the Prop used for the ground filming was an actual abandoned helicopter. The approaching and crashing helicopter is most likely CGI, so it should have been easy to have them matched. (00:15:00 - 00:21:00)
Continuity mistake: When the Overgard makes a cave in the snow for the night with the girl, he goes to put her picture in her coat. She is sleeping with her hands down at her legs. When it cuts to a close up of the picture going into her coat, suddenly her right hand is up on her chest. (00:47:12)
