gregeganSF, [On the IMAX print of Oppenheimer. Good grief. At least he didn’t demand doubling the frame rate ...]
"It costs around $80,000 and weighs 260 kilograms; without the upgrade, the print would have fallen off the edges of the film platter.
"Previously, Nolan's Interstellar was the longest you could run at 170 minutes … Nolan didn't want to compromise his vision of Oppenheimer and edit it down, so he said to IMAX 'you need to extend the equipment'.
https://www.abc.net.au/news/2023-07-20/imax-oppenheimer-christopher-nolan-imax/102620264