SPOILER Further clarification, the character is unsuccessful not because they are stopped from taking an entire bottle of pills. Rather it's because the pills are revealed to be sugar pills.
At the very beginning, when explaining how the main guy (Roy) ended up in the hospital/paraplegic, they show the results of a stunt he did for a silent film. It killed the horse and injured the man's back.
There is a guy, who is paraplegic, who is held down in his hospital bed when he has a major emotional meltdown. Also, the little girl refers to the surgery on her head after her fall and fixing her arm again (it is already broken and in a cast when the movie starts) as 'being tortured with needles' because she is still groggy and confused, and thinks her friend is mad at her when he comes to visit her.
An elderly character shows off his dentures to make the little girl laugh, and there is a reference to the little girl's teeth coming in as she'd recently lost her front baby teeth. The loss of her teeth is NOT shown.
There is a puppet/toy re-enactment from the little girl's perspective, of her hitting her head and surgeons looking inside a doll's head that has a hole in it, and pulling a scroll of paper out.
There is a character (he's a fellow stunt actor for silent films in the hospital scenes- he's an explosives expert in the fantasy/dream side of the story) who has a wooden prosthetic limb. He takes the leg off at one point, they show how in the movies he lets it be shot and plays it up for comedy, and in the fantasy/dream half of the story he is shot in the leg and has to drag it behind himself.
There is a scene, in the dream/fantasy side of the story, where the villain attempts to drown the leading guy while the little girl has to watch. The good guy does NOT drown, but you hear him trying to catch his breath a couple times and the camera lingers on him being held under.
In one brief scene, a woman shakes her inert child's foot begging him to wake up. We are not sure if the child is dead or in a coma, but his body appears lifeless.
When the little girl wakes up from a surgery (she falls in the movie, and injures her head plus re-breaks her arm) and is still groggy, she tells the leading guy that she didn't tell any of their secrets "not even when they tortured me with the needles".
The leading guy wants to die and does take too many pills a couple times, and is trying to talk the little girl into getting him more pills. He also gives up in a fight in the fantasy/dream side of the story and nearly allows himself to be drowned.
The adult male lead has a breakdown at one point in his hospital bed and the little girl lead gets scared and wets herself (an older patient finds her standing in her puddle, and he tells her how to clean up and hide it from the nurses). In the fantasy/dream side of the story, the leading guy has a minor panic near the end of the movie but they focus more on the little girl than him.
Nothing is shown and I missed it completely the first time I watched the movie, but as a little girl runs down a hall, she stops in front of a doorway and whimpers as she hears heavy breathing and moaning.
More 'blood' than gore. Bodies are on display at a distance and with a swooping camera move so you don't see any real detail but later they are wrapped and the blood soaks the cloth in an artistic display (i.e. in a way it could not possibly do in real life), a character puts his hand in the blood before making an oath of revenge. There is also a character with a wooden leg who allows it to be shot in the cowboy/silent-movie scenes, and in a dream sequence the little girl pictures her father having a wooden and porcelain leg that is broken when their home is attacked- it is meant to be her retelling him dying.
I will say there is an attempt. In one scene, a man sets out to shoot a woman he fears may betray him. No blood is spilled as her necklace's pendant stops the bullet.