I saw an original Ultra Panavision print of Mutiny on the Bounty this year at Bradford on the Cinerama screen.
It was very pink but good 6 track. It was projected with an original D-150 lens so we still had the squeeze
but still looked very good.
The Hateful Eight in London did look great on...
There is a print of 70mm print of Grand Prix but it is mute, its a shame they could not have put a DTS Timecode on it at the time.
I have had the HDDVD and have the BD of Grand Prix and will let you know what it looks like from the second row in Bradford.