The movie is not exceedingly violent per se but still there are some really graphic moments in it.
A man has a bloody knuckle after having beaten some prisoners.
A man has some blood on the side of his face.
The walls of a prison cell are completely smeared in feces. Disturbing (the whole hygiene strike might be really disturbing for most viewers).
Rotten garbage is seen on the floor.
Urine is poured under prison doors and collected in the hallway. Disturbing.
A man's hand is bloody after he punches a wall.
A man's face is bloody after his hair is all randomly cut off with some scissors. Graphic and shocking.
Men are forced to walk through a gauntlet of policemen with batons. Very disturbing and graphic.
A man is shot at close range in the back of the head. His blood flies onto a woman's face. This is very graphic, disturbing and frankly unexpected.
Long sequence where a man pushes urine down a hallway with a broom.
An emaciated man has large bedsores all over his body. Very hard to watch.
Some blood is seen in a toilet after Bobby Sands tries to defecate. Disturbing.
A man throws up.
A man's dead body is seen.
A few beatings, threatening, destroying of furniture.