An completely uncropped Panavision frame is still about 2.35:1-2.39:1. I took your image of the full binary sunset frame, and cropped it where the edges of the image start - it was about 2.36:1.

Then, I applied a 2x horizontal stretch to my chart, and superimposed the green boxes over the binary sunset image. Here's what I got:

Here's the green boxes within the full, unstretched frame.

I will say that the framing of the Technicolor screening Mike Verta attended seems to have been about 10%.

If you could provide a full-size frame of this shot, I could figure out how much the Senator screening was cropped compared to the full film frame: