Linda Blair, Max von Sydow, and Jason Miller in The Exorcist (1973)

Ellen Burstyn and Jason Miller in The Exorcist (1973)

Director Churchill at a convention with Linda Blair

Linda Blair and William Friedkin in The Exorcist (1973)

Linda Blair and Ellen Burstyn in The Exorcist (1973)

Max von Sydow and Jason Miller in The Exorcist (1973)

Ellen Burstyn and Max von Sydow in The Exorcist (1973)

Ellen Burstyn, Max von Sydow, and Rudolf Schündler in The Exorcist (1973)

Linda Blair, Ellen Burstyn, Max von Sydow, Eileen Dietz, and Jason Miller in The Exorcist (1973)