The character of Emily Rose was inspired by the true story of Anneliese Michel, a young German Catholic woman who died in 1976 after unsuccessful attempts to perform an exorcism upon her with psychotropic drugs. The court accepted the version according to which she was epileptic, refusing to accept the idea of supernatural involvement in this case. Two priests involved in the exorcism, as well as her parents, were found guilty of manslaughter resulting from negligence and received prison time (which was suspended), generating controversy. Michel's grave has become a place of pilgrimage for many Catholics who believe she atoned for wayward priests and sinful youth, and honor her as an unofficial saint.
German director Hans-Christian Schmid launched his own treatment of Anneliese Michel's story, Requiem, around the same time in late 2006.