Probably owing much to Forrest J. Ackerman's relentless championing of the late Lon Chaney, Sr. as one of the great horror stars, the fact that the actor had an amazingly diverse career and was, in fact, considered one of MGM's biggest stars in general, seems forgotten.
In 1925, Chaney starred in a melodrama entitled THE UNHOLY THREE about sideshow geeks teaming up to become criminals.
In 1930, it was THE UNHOLY THREE script that was dusted off and spruced up to become Chaney's first talking picture as well! The Man of a Thousand Faces received rave reviews for his first talkie and was, in fact, touted as also being The Man of a Thousand Voices!
But then Lon Chaney died later in the year and the second UNHOLY THREE became his final film appearance.