This is a screen-matched key costume worn by Jennifer Carpenter (Emily Rose) in the exorcism scene at the barn. As far as I know, there are only three screen worn 'barn scene' gowns, two were sold to collectors, and the third is in Jennifer Carpenter's (Emily) personal collection. All the other gowns are NOT used in the barn scene, but in the bedroom and in the last scene where she goes to the big tree.