jude I have only really read your posts through the thread, but I am totally with you on this. DD1 is just into year 1 and last year I complained 3 times that they were showing movies in class time, for "downtime" and rainy days.
Your DS sounds very like my DD, who just can't cope with intense movie stuff at home. however she does seem to be ok at school, although when they watched Ice Age (I think it was) she asked the teacher if she could go and read in the library because it was too scary.
I haven't broached it with the new teacher yet. I have been labelled "that mother" because of it, and I know the reason for that is because most parents don't mind, and it never occurred to the teachers that anyone would not be happy about it. "We only show U rated films" they said... but yes on the extreme end, that includes the early Star Wars films...
There is a brilliant website called commonsense media which I directed the school towards, and suggested they might like to have a bit of a think about which films they were going to show. I also suggested they might like to send parents a list of films they are thinking of showing (no list has yet appeared but I will be reminding them that they agreed at the time it would be a good idea!)
I didn't realise starting school was going to compromise my screen time ideals. I thought limiting screen time was an agenda most people signed up to? It's pretty well known that it doesn't do children any favours.
Yes, that.
Good luck, OP.