These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Alternative Character Interpretation: Some people take Jessep's courtroom rant as a Take That and a "The Reason You Suck" Speech towards the kind of limousine liberals (who would never dream of joining the military themselves) who sit back and criticize armed might and the use of violence against while living their lives under the guard of those same people who they disdain. This really only works when extracted from its context, as Jessep is arguably just as much of a hypocrite as they are.
Fridge Logic: If Santiago were really as sickly as we're led to believe, he would never have gotten through Marine Corps basic training!
Ho Yay: Between Kaffee and Ross. They seem to know each other pretty well, and then there's the whole scene with Cruise sucking on his doughnut-dust-covered finger while Bacon stares him down. And then some of the final lines:
Ross: Strong witnesses.
Kaffee: And handsome too, didn't you think?
It Was His Sled: Colonel Jessep ordered the hazing that led to Santiago's death.
Misaimed Fandom: The number of viewers who admire Jessep's Motive Rant is staggering. Sure, he's supposed to have depth, and isn't a Card-Carrying Villain but when he says soldiers shouldn't be accountable to the law, you're not supposed to agree with him.
The worst part is that Jessup's breakdown isn't supposed to be the center of the movie - it's supposed to be about the duty of the strong to protect the weak, and how Jessup betrayed that duty when he had a kid brutalized and accidentally killed him for being weak. Nicholson should have been cast as Weinburg, not Jessup, so that he could have put his personality behind it. As is, everybody remembers Jessup talking about necessary evil.
Lt. Weinberg: They beat up on a weakling, and that's all they did! The rest is just smokefilled coffee-house crap! They tortured and tormented a weaker kid! They didn't like him! So, they killed him! And why? Because he couldn't run very fast!
Galloway: They stand upon a wall and say, "Nothing's going to hurt you tonight, not on my watch."
Dawson: We were supposed to fight for the people who couldn't fight for themselves. We were supposed to fight for Willie.
These few sentences from the Motive Rant are key: "Son, we live in a world that has walls, and those walls have to be guarded by men with guns. Who's gonna do it? You? You, Lt. Weinberg? ... Otherwise, I suggest you pick up a weapon, and stand a post." The idea of either Kaffee or Weinberg doing that is laughable. Had there been even a hint that either man had ever been placed in harm's way, it would've negated this. (It's significant that Jessup doesn't say this about Galloway; partly because he's sexist, but also because one can imagine her doing so.)
Also, people in the military are told that civilians have every right to question the way their freedom is defended. To do otherwise would be to imply that fighting for one's country guarantees an automatic right to ignore common morality, regulations and the laws and customs of war, which it simply does not. America wants proud soldiers, not arrogant ones.
One-Scene Wonder: Colonel Jessup is such an electrifying character and his presence in the film is so strong that it's easy to forget he only appears in a handful of scenes. But each one is pretty astonishing and he is the originator of the film's famous monologue.