Eden Lake is a relentlessly tense and immaculately paced horror-thriller about modern youth gone wild. When a young couple goes to a remote wooded lake for a romantic getaway, their quiet weekend is shattered by an aggressive group of local kids. Rowdiness quickly turns to rage as the teens terrorize the couple in unimaginable ways, and a weekend outing becomes a bloody battle for survival.
This movie contains 52 potentially triggering events.
The antagonist's dog is mortally wounded during a knife fight (accidentally). The scene is dark and you don't see anything too graphic other than vague dark blood, but you do hear her whimper in pain.
Early on in the movie, when Steve is at the house with all the bikes, the group of teens is clearly terrorizing an animal in an outdoor cage, but you can’t tell what it is.
Later, in the woods, when Steve and Jenny come upon the teens, they have an animal (maybe a badger!?) caught in a cage/old shopping cart, and they’re kicking at it. It’s clearly terrified.
And then, of course, the dog, which another commenter detailed.
dead dog. a beloved pet gets killed, even though it’s the antagonist, he clearly loved this dog very much and cries her name as she dies. the dog is clearly the only person he has left that loves him
I would say yes, the man deliberately moves and strains against barbed wire. This is visualised clearly. The nuance being this self harm has intent of survival behind it.