According to Harrison’s Reports, a trade journal, when the film was originally released, it contained 17 minutes of color footage; that color footage was retained in the 1929 part-talking version.Technicolor’s records show 497 feet of color footage. Judging from trade journals and reviews, all of the opera scenes of Faust, as well as the “Bal Masqué” scene were shot in Process 2 Technicolor (a two-color system). Only the Bal Masqué scene survives in color. The Phantom’s cape during the scene on the rooftop of the opera was colored red using the Handschiegl color process. This effect has been replicated in Photoplay Production/Kevin Brownlow’s 1996 restoration by computer colorization. (x)
"The Phantom Of The Opera" (1925)