Dream House (2011)

Other mistake: In the scene near the start as Will Atenton is being driven to his house by the property agent there is a close up of the car which shows a snow covered bonnet therefore the car would not have been driven very far as the engine was not warm.

Will Atenton: Once upon a time, there were two little girls who lived in a house.

Question: At the end, when Peter Ward was saying goodbye to his family for the last time, were they the ghosts of his family, or was he imagining the whole conversation as a result of never having gotten to say goodbye in real life?