Which film is this- (child abduction)

[Annagram the Eskimoette]

Does anyone recognise this recent movie? A small boy is abducted and later, returned to his mother. However, she insists that the boy is not her son.

 

[Zombie King]

Changeling


http://www.imdb.com/title/tt0824747/

 

[jordan 4233]

That's the one! Thanks so much.

For some reason I'd got it into my head that it was called 'Taken' which is an entirely different plot.