Can't help you with the Japanese ;) Still, feel free to consider this thread a dumping ground for all related developments.

I can't believe the Dingo scene was inserted that long ago! That was a useful link for deciding where to make the cut. Also, I'd be interested to know what the European theatrical ratio really was, if there's any way to find out. I'd always assumed the 1.66:1 framing was just chosen as a convenient way to shoot film that could be alternately framed as 1.85:1 or 4:3 depending on whether it was for theatre or television. If it was actually shown in any theatres like that, I may not mind so much.