The Phantom of the Opera (1925)
Lon Chaney's unmasked Phantom, arms folded beside a statue in a studio portrait for The Phantom of the Opera: the skull-like face, upturned nose and jagged teeth that Mary Philbin's Christine reveals when she pulls away his mask at the organ. Chaney devised the makeup himself, and Universal kept it a studio secret until the premiere, so audiences met the face exactly as Christine does. The unmasking is still the moment every later Phantom is measured against.
