Vaderisnothayden said:
When was the 70mm completed? Before or after opening day?

Also, are you sure the 35mm was the more complete later-made version? Because it actually had less lines, most notably the "thanks threepio", but also some other small bits.

Yes, the 35mm was the later -made version. it is pretty well documented that GL ordered a few extra FX shots and some changes but as the 70mm version was already complete and printed it would have been too expensive to have redone all those prints. That is why there are different lines as it had an earlier mix.