hairy_hen said:

Sometimes I wonder about the 70mm mix of Empire. It is claimed by many that the changes to the SE version, both of dialogue and of music editing, are derived from the 70mm, but without any recordings of it available to compare, such statements must be considered unconfirmed. Supposedly Empire came out in 70mm first, but if the 35mm version, which is 'missing' several things claimed to be in the 70, came out later, then why would a more 'complete' version of the soundtrack be released earlier? With Star Wars, the less 'complete' stereo version was the first one out. I'm a bit sceptical that those changes are actually in the 70mm version, although I could be wrong. The SE music editing is definitely superior, because it doesn't hack up the music in some places the way the 35mm does, but the dialogue additions seem unnecessary. I dunno.

So which are you doubting? That the SE changes represent the 70mm or that the 35mm was the later one? I've read that the 35mm was intended to be the more definitive one.