A Passage To India had HBO's involvement in financing and they insisted on shooting standard 35mm to make it easier to convert it to the small square TVs of the 1980s.
It is interesting that Carol Reed went back to 35mm Panavision for Oliver! after having shot The Agony and the Ecstacy in 65mm Todd-AO. David Lean, director of the 1948 B&W Academy Ratio Oliver Twist with Anthony Newley as the Artful Dodger and Alec Guinness as Fagin, did the same thing: he shot...
Oliver! loses the music-and-effects track from the Blu-ray but gains a commentary. Hmmmm…
That's what impresses me. This needs to be standard operating procedure for all such situations.