- Critical Research Failure: While a question of critique that's arisen towards the main characters is "Who goes camping without a weapon?", it is (largely) against the law to own a gun in Britain and possession of a firearm is grounds for arrest. Doesn't rule out the possibility of blades, however.
- Jerkass Woobie: Most of the chavs themselves. Cooper in particular.
- Moral Event Horizon: The gang crosses it when they torture Steve, taking turns slashing him with knives, and finally stabbing his tongue. During this scene, Brett doesn't do any torturing himself, but forces his "friends" to do it while filming the whole torture. Cooper is even crying when it's his turn to cut up Steve, but he still does it.
- Paranoia Fuel: What makes the movie so terrifying in the first place. Anybody, anywhere can be terrorized by delinquent criminals, and just because they're young does not mean they can't be dangerous and sadistic. The worst part is that this movie may have been partially inspired by the Real Life murders of Japanese schoolgirl Junko Furuta and 2-year-old English boy James Bulger (Warning: both cases are incredibly disturbing and upsetting and are not for the faint of heart), both of whom were gruesomely murdered by teenagers whose inhuman behavior was almost entirely dismissed by their parents and the court system.
- Tear Jerker:
- The whole movie is this for anyone who's lost a loved one to petty criminals.
- The fact that neither Steve nor Jenny survive to the end of the movie. On top of that, they both died slowly, painfully, alone, and just as they were about to begin the rest of their lives together.
- The killing of Cooper, and Jenny's subsequent reaction to doing so. She may have been defending herself, but she still killed a child.
- The Woobie: Steve and Jenny.
- Unfortunate Implications: Some reviewers interpreted the film as classist in its portrayal of chavs and lower-class citizens as sadistic and violent while the well-off protagonists are depicted as polite and better educated.
- Unintentionally Unsympathetic: While everyone agrees Adam died horrifically, some found it a little hard to feel bad for him considering he not only betrayed Jenny to the gang, but never even warned her and Steve of the gang being in Eden Lake in the first place.
YMMV / Eden Lake