There's no dout bout it, this is an amazing movie. I loved this movie, this was my sort of movie, tons of violence, a bit of swearing and just BOSS attitudes.
The level of violence in this is high but not that realistic. Like witches get blown to shreds, two witches fly into some wires and get completely decapitated, a witches head gets pulled off, etc. Now, I watched this and I didn't find the violence that intense, it all had a dark feeling about it but it didn't really make me dry-reach or anything. Like sometimes I might go "Ew" but thats it. The only violence that really made me feel sick was when Hansel and Gretel's Dad got hung. He was thrashing all over the place, which I found VERY disturbing. The scariest part for me was when Hansel and another girl get into a fresh spring of water, naked, and start kissing. It is then implied they have sex. This is the only sexual thing that happens in the movie though and if you don't want to see this there's a pretty long introduction before they go in, They for one, are sitting right next to it, then the girl (forgot her name) says its easier if he just gets in the spring, so Hansel gets up as she starts to undress and says that its fine, etc. Well then he gets in they kiss, blah blah blah.
There is not that much swearing but Hansel and Gretel are pretty straight foreward people, easy going, theres one point where a witch casts a spell on a man and he walks into a bar with lots of people including Hansel and Gretel and he explodes, Gretel, while wiping blood and guts off her shirt says "I hate that f****ing spell. "
I would say a mature 12 -13 year old.