Matt, you are right.
Here's an excerpt from a transcript of an interview with George Feltenstein conducted by Robert A. Harris: (
www.thedigitalbits.com)
GF: ... We worked very hard to reconstruct the entire film without having to depend exclusively on the CRI, but had to use it as a basis. To work without it, straight from individual elements, would have been a multi-million dollar expense. So where we had the Ultra-resolution Singin' in the Rain, we inserted that. Where we had the newest, cleanest transfer of The Wizard of Oz, we inserted that. Situations like that were the exception rather than the rule, but we upgraded where we could.
RAH: High Society looked like it was…
GF: Precisely. High Society was from our new 16:9 high definition transfer from the VistaVision elements.
RAH: Which is gorgeous.
GF: And even more importantly than that we should talk about the sound for High Society. It's now 5.1 stereo. The stereophonic sound in That's Entertainment in 70mm was one of the most thrilling aspects of the movie for me. And yet High Society was originally released monaurally because it was in VistaVision, and VistaVision didn't have true stereo.
So when they showed the clips… actually only one clip from High Society in the original version, which is the Sinatra / Crosby number, the audio was mono.
This is the first time where That's Entertainment has stereo audio for the High Society clips, and I say clips plural, because the European version of That's Entertainment had True Love in it. So we have now traditionally put that back into all versions of the film going back to the laserdiscs of the early '90s.