The unmasking scene
Film historians and critics have stated multiple times, how 1925 audiences were shocked by the phantom's disfigured face, I am watching it now, but was not that shocked. Naturally, movies were a new thing nearly a century ago, therefore I understand the reaction.
I thought I would be bored, but the film was interesting, it has held up well for a film almost 100 years old. The set designs and costumes were cool.