That cropping chart is not correct. You stretched a 16:9 TV overscan chart out to 2.35:1.
This is the SMPTE framing chart for projecting 35mm film, with some additions by me (the dark green lines and the light green boxes). The outermost green box is the Panavision frame (marked "ANAMORPHIC" on the chart), the middle box is 5% cropping and the innermost box is 10% cropping. Save this image, horizontally stretch it 200% and shrink it so the film frame fits into the outer green box, then lay it over the film frames like you did with this other chart, and you'll see how SW would have looked with 5% and 10% cropping in cinemas.
(I scaled it down for this thread, it'll be at full resolution when you save it.)
