A few years ago, the New Haven Shubert theater had a holiday party (free food and a movie) for it's subscribers. They showed a Blu-ray of Meet Me in St. Louis stretched to fill their 1.85 screen. No one in the audience complained. Most people are clueless about video.
It's a shame that the first movie filmed in UP70 - (really MGM Camera 65) was never released in 70mm and is only available on VHS tape and laser disc - Raintree County.
It is better than UP70 titles Hallelujah Trail (probably the worst Blu-ray ever) and The Greatest Story Ever Told, and an upgrade to the DVD, but could be sharper.
Saw Bohemian Rhapsody at the Washighton DC Uptown theatre yesterday. It's one of the few remaining Cinerama theatres that still shows movies on a deeply curved screen. The presentation was not as good as what you would see at the LA Cinerama Dome. The image did not fill the screen, was off...