By all of the prologue sound, do you mean *all* of the prologue sound? Including all the Whiteman selections? Ziegfeld and Laemmle talking? Otis Harding's introductions? That's wonderful news indeed if it's true!David of The Alps wrote:
Regarding "Show Boat" (1929) they have found all of the original Vitaphone Discs now, including the discs which lent sound to the musical preface of the film. I'm not sure if they have the footage to this preface, but I am about 90% sure they have? They just need to restore it! Warners said they were going to restore it about five years ago and release a 3 Disc version including the 1929, 1936 and 1951 versions. However the restoration of the Technicolor of the 1951 version was proving troublesome apparently especially with the end reel and all that fog etc. I have no idea what the delay is now though with this release? I am hoping for a "Show Boat" 3 Disc blu-ray release now.
Regarding the original cast performances, both Tess Gardella numbers ("C'mon Folks" and "Hey, Fella!") have survived, both sound and film elements, for decades. Most if not all of both sound and film of Jules Bledsoe singing "Ol' Man River" and Helen Morgan singing "Bill" survives. All the sound of Morgan singing "Can't Help Lovin' Dat Man" survives. The story I was told was that, when preserving the footage, they successfully copied Morgan entering the set, sitting on the pantry table and singing "Fish ...." before the reel turned to mush. If complete film elements for this has been subsequently found and preserved, then my life if officially complete.