During Phantom Of The Opera re-creation, position of actress who faints and falls to floor after unmasking Lon Chaney's character shifts from shot to shot.
Lon Chaney did not die at home surrounded by loved ones, he died very suddenly in the hospital (around midnight) after suffering a hemorrhage.
Lon Chaney was very much against Creighton entering into the film business. He most certainly did not present Creighton with his makeup case on his death bed. Creighton did not adopt the "Lon Chaney Jr." name until 1935, four years after the death of his father.
The scene of Creighton leaving home to take care of his natural mother is completely false. Around that time, not only was Creighton married, but was the father of 2 children and was working for his father-in-law.
This movie's depiction of Chaney's makeup for "Phantom of the Opera" is very misleading. The movie's version shows Chaney's face unrecognizable and nearly immobile behind elaborate full latex appliances. Chaney was actually proud of his ability to distort his appearance using only a minimum of makeup - in this case basically thin wires in his nose and around his eyes, false teeth and dark paint around his eyes and nostrils.
Lon Chaney Jr was not born in a hospital. He was born in Chaney's cabin in Oklahoma city.
Chaney died in 1930. In one scene, however he drives up to his cabin in a 1937 Packard.