@Red_Shirt_Dude The Expanse also had linguists consult to help construct the Belter creole for the show (the author of the books admits that languages aren't his strong suit). I think they may have done the same with the brief depiction of a Belter sign language (which uses much larger and more exaggerated movements, and doesn't use things like finger spelling, because that's hard to do when wearing a bulky spacesuit).
I also found it a fun detail that in one episode, they actually did use public domain music (all of Hank Williams' work is public domain as far as I know) as a depiction of Martian popular culture - because I would absolutely bet that Earth copyright holders wouldn't even pick up the phone for the Martian government. (And I'm sure Mars also has a thriving media piracy scene, though I don't think that ever comes up in the show or the books.)
As a sewist, I honestly cannot think of any shows or movies I've seen that have accurately shown the entire process, or even just parts of the process of making a garment from scratch to finished, and especially not with accurate time frames. Mostly, suit fitting scenes are the most likely to be kind of accurate (I can't remember what I saw that actually showed what the fitting pieces look like with all the basting thread's hanging out, but that was a detail I appreciated) . If they're out there, I haven't seen them, though I don't actively seek them out.
But I'm sure that's true of a lot of crafts shown in movies.
OTOH, as is well-known, Breaking Bad consulted with law enforcement (the DEA, I think) to ensure that they didn't get too accurate in their depiction of the process of making illegal drugs.
Less well-known is that Robert De Niro's character in Heat was based on a real person (of the same name too!) and the famous coffee shop scene was based on a real interaction with a detective who was trying to catch him out doing something illegal. Most of the heists and related events in the film are based in real life events. (And then, awkwardly, Heat has apparently inspired a few later criminals too. I guess that's the price you pay for accuracy?) But I'm told that's what Michael Mann is known for.