As I understand it there is some extra room around the 4:3 shot in the 35mm frame, so it's possible that when transferring off of the film (which they'll need to do anyway) that they could re-frame the shot to be 16 x 9 while still preserving the essence of the intended shot.
There's a little bit
of extra room - the film shots have a ratio of 1.37
:1. Barely worth mentioning in the context of the bad idea of cropping a 1.33:1 shot to 1.78:1.