After seeing the movie, the death scenes haunted me that whole night. It's not that they were overdone graphic, but they were really well done to make it linger in your memory. The idea of fighting to your last breath is especially poignant...their bodies exhausted to the limit and lung capacity expended until there was no more. It literally was the last dying breath. They fought bravely and valiantly to the end, and it was depicted in a more personal and grim sense (in a manner of authenticity), rather than dying in any formulaic giant Hollywood fireball.
This movie goes into that category for me, where it is utterly great, but I could never buy the disc. It's too emotionally dark for me to even ponder watching it again for "enjoyment" or "entertainment". It's not that kind of experience. You watch it once, and then you grow from that experience. Others may find it collectable, though, and I would fully endorse that, too.
Margot Robbie is THE most exquisite human creature on the face of the planet, in this moment in time.