I made a little short with this in school. The noise of the camera was an issue, that's why the prof ordered us not to record any audio/dialogue. It was my first time using film, so I wasn't going to waste it shooting a tree or my cat. I just made sure the noise from the camera was consistent throughout the film. You can still hear it but it barely distracts you.
It is probably a great film, and will definitely give it a watch. But my point was merely related to the injuries and how it's used to capture peoples attention.
The trailer doesn't tell me that much about the film, except that no animals were injured, and 70 people were. As if that's the films "selling point". Also I think its horrible that someone would put a crew and actors in so much danger and harm; a production should be safe, or somewhat safe (sometimes you need a shot that is dangerous to produce), but putting a large crew through that for 11 years is a different story. That used as an advertisement for the movie kinda makes me sick.