Psycho film being shown to 14 year old in English class

[Emydan83]

I’d like some opinion or advice for this situation I find myself, my partner and my 14 year old daughter in. In a council school in Scotland my daughter, who is 14 and in 3rd year , the English class were shown the film “Psycho” from the 70’s, then asked to write a critical essay from the view point of either the murderer or the victim. No parental consent was asked before they began this topic , now roughly 2 weeks later we have contacted school to make a complaint after realising the full scope of this topic. Not only is this film rated a 15 in the uk, no authority seems to have been given from any senior member of the school or any parents contacted. I truly believe a 14 year old child should not be subjected to this emotional torment to imagine themselves either committing murder or being murdered in the name of learning English.
I would be grateful for any feedback, thank you.

I think all the people saying “oh well I’ve seen worse” or “what else kids watch these days ” are completely missing the point. What they watch at home they can walk away from. I’m very sensitive and re - live a lot of what I see in daydreams. I can’t watch horror films or even mild scare scenes as they will affect me for years afterwards. My husband has no visual memory at all so after watching a film he can just remember what happened but he can’t rewatch it in his head.
Showing it in class should not be allowed as they have no choice and is above their age restrictions

And for the latecomers. 1)There is no age restriction for school screening. 2) Psycho is not a horror film 3) it's been on the syllabus for 40 years +