I knew a guy who served on a submarine. He said the best comparison to sub life wasn't Ice Station Zebra, The Hunt for Red October, or Crimson Tide.
It was Down Periscope.
Everyone I talked to since who served agreed.
There's how something is presented, and how it really is.
Next time someone tells me they want to go into security I'm going to tell them to watch *Don't Look Up* and reassess. That movie explains this job better than I can.