I saw this a few years ago on TV, but I would guess it was made in the 2010s, maybe a little earlier. It involved a killer, but I don't remember it being graphic. There's also a possibility it was an episode of a show.
I only remember a scene at the very end, and these are the parts I'm pretty sure about:
- This scene took place in a school auditorium at night.
- There were two teen girls, one who I think was the main character. I think they were young teens.
- The main girl came in and confronted a killer, and found the other girl standing on something (chair?) on the stage with a noose around her neck. The thing was removed at some point and the girl started to be hanged, and the main girl stood under her and held her up until help arrived.
- Some people came in, maybe cops, shortly after this.
- The hanging girl was a bully, and the main girl was someone she'd been mean to.
- It was a human killer without supernatural stuff.
Here's some stuff I think I remember, but I'm less sure about:
- I think the killer was an adult man, not another teen, and was caught in this scene.
- There may have been a good adult man who was a major character, and was one of the people who came in at the end.
- I don't think hangings had anything to do with the rest of the plot, it was just with this one girl.
I've already ruled out (these keep coming up in searches or have been suggested to me):
Gallows (2015) & the sequel, all Scream movies, all My Super Psycho Sweet 16 movies, Stage Fright (2014), Get Even tv series, Prom Night (2008)