I can’t see how it would be de-warping, since the subtitles are the only thing distorted in this manner, nothing else.

Well, I know the -1 scan has some light leakage, which couldn’t really do a lot more than blur the edges but might effectively give you an extra pixel all around. And SSE is based on a dupe print, which is two generations of duplication after Verta’s print. So I’m thinking it’s the duplication, which means the thickness of the subtitles depends on when and where you saw it… ugh. Like the soundtrack! 😉