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.
YMMV: On Deadly Ground
Anvilicious: The villain is so mean he can't even stand the smell of caribou to film one commercial.
Alternative Character Interpretation: Forrest comes off several times in the film as a psychopath. What Jennings is trying to do is wrong, but Forrest commits eco-terrorism on a grand scale, murdering several people in the facility, including people who are unarmed and unable to defend themselves. When told they have enough evidence to go to the police and stop the oil rig from beginning operation legally, Forrest blows off this option and simply blows the rig up. Which, when you think about it, would also have some pretty devastating effects on the environment Forrest was sworn to protect.
Black Hole Sue: Forrest is an arguable example. No matter what happens, the crowd seems to always be on his side. An example of this is during the conference when Jennings lists Forrest as part of the sabotage conspirators, you can hear someone yell out "Bullshit," despite having no reason at all to do so! Also, Masu's perfectly reasonable idea to go to the press with Aegis's dealings instead of confronting Jennings is immediately shot down.
Harsher in Hindsight: Blowing up the oil rig becomes a lot harder to watch after the Gulf Oil Spill.
Hoist by His Own Petard: A Creator Killer variant. Seagal was the director of the movie and the producer, and this was his first role that he was the unequivocal boss in order to share with the world his ideas of what makes a good film. Judging by the way the movie absolutely bombed, he's got no one to blame but himself and whatever Yes Men buffoons signed off on it.
Inferred Holocaust: As Film Brain pointed out, Forrest blowing up an oil rig will cause more environmental damage than letting it run normally. Also doubling as Moral Dissonance.
The frequent offscreen voices shouting their support for Forrest and/or dislike for the villains, which were obviously added in post-production because Seagal needed his ego stroked even more.
Nightmare Fuel: Hugh's torture scene. An old man is bound to a chair and his fingers broken with a whale bone and later a pipe cutter is used on him. Part of this scene, according to Film Brain, is cut from the UK release, and when he says that the scene is better trimmed, he's right, since enough of the scene played out still gives us what we need to hate the characters.
Protection from Editors: Probably because, for all intents and purposes, Seagal is the editor for this movie. He was the director and one of the producers.
Star-Derailing Role: Well, it might be a bit of a stretch to call Steven Seagal a star, per say, but there's a reason that Seagal's movies started to end up in the "Straight to DVD" bin after this one.
What The Hell, Casting Agency?: Aside from a Knighted British legend, they got R. Lee Ermey in this film. R. Lee Ermey! Ermey's death in this film involves him basically walking up behind Seagal's character and allowing Seagal to get within arms reach of his shotgun...yeah, they must have paid him a lot to put up with that. Worse, they reportedly didn't let him ad-lib, which is why several of his lines sound completely nonsensical, to the point of self-parody.
''He's the kind of guy who would drink a gallon of gasoline just so he could piss in your campfire."
Meanwhile, they brought in John C. McGinley pre-Scrubs to play...a psychotic torture expert? Although this last one is probably the most YMMV of the lost; to some, he's the best thing in this movie and genuinely creepy.