Nice to know I'm not the only one who loves Tomorrow Never Dies. I think it's been unfairly dismissed. The pre-credits sequence, especially, which I think is the best pre-credits sequence in the entire franchise.
I would argue that it's about content, not shape or size. A while back, in another thread ("What Is It About the 1.66:1 Ratio That I Love So Much?"), I wrote:
"I think the real point isn't how large the image is, but what the content of the image is. The Mona Lisa's "aspect ratio" is roughly...
It depends. Most "widescreen-ratio" TV shows pick a ratio and commit to the entire thing being that ratio.
The Expanse -- starting with the move from Syfy to Amazon Prime with Season 4 -- has been a two-ratio affair. Scenes in space are at 2.00:1, whereas planet-bound scenes are 2.35:1.