The 8mm version, contrary to what was stated earlier, is not at all the same as the 70mm. While it does use a number of the early visual composites created for the 70 which were replaced in the 35, the audio track is entirely separate, and its numerous differences in ADR are not present in the 70mm mix.
Good to know. I assumed if we were seeing 70mm visual differences, the audio differences would have to be from 70mm as well. I guess that’s what I get for assuming 😉