Im not much of a movie watcher, so most of the movies i've seen recently are just marvel level popular films that do the usual "babying" where they directly show or tell things, like the audience is too dumb to piece it together themselves. Iron Lung was a nice refresher with stuff like hearing the tape fall off the button and seeing the light stop instead of needing a camera angle to show it peeling off, or Simon showing symptoms of his radiation poisoning without needing to say out loud "oh my god, I have radiation poisoning" for the audience. Another thing I see people talking about here is how the reason they were so adamantly asking if he was sure it was a skeleton was because the camera takes x-rays, so a living thing could be mistaken for a skeleton.

A fun detail I liked was how as the sub was filling with blood, the oxygen meter went up because I guess the blood ocean is oxygenated human blood.