R2 menu screens, and screen grabs showing
the framing of the (non-anamorphic) letterboxed B&W version, compared to
the 4:3 colorized version.
This image, with the colorized version
superimposed over the black-and-white version, shows just how cropped
the old 4:3 presentations of Invasion of the Body Snatchers
were!
This image shows the difference in
framing between the UK disc (in blue), and the US disc (in red), based
on screen grabs found
here.