I saw The Hateful Eight at a 70mm Roadshow showing yesterday. A great, great movie and a great experience seeing it this way. The theater I went to, at the first screening at 12:30PM, was sold out and completely full.
It was something different to see a movie in which:
1) There were no trailers in front of the movie.
2) There was an overture at the front of the movie with the score of the movie playing at the beginning of the movie, where it was on a screen that said "Overture" on a red background with a stagecoach image at the bottom of the screen.
3) There was a 12 minute intermission in the middle of the movie to change film cannisters.
4) They handed out a 16-page full-cover program talking about the movie handed out before the movie.
5) It was shown in Ultra Panavision 70, which is 2.78:1 aspect ratio, so you see bars at top and bottom of the movie screen since the movie screen is only 2.35:1. They haven't shown a movie in this format since 1966, with Khartoum.
They're only doing this 70mm Roadshow in 98 theaters and it looks like it covers a good number of large metro areas. Website link to see if it's in your area:
http://thehatefuleight.com/roadshow
Glad I went to see it, since I wasn't alive the last time they showed a movie in Ultra Panavision 70 and with the migration to digital projection going on, likely to be the last one. It made a difference in the movie viewing experience and well worth the money spent on seeing it this way.