I really applaud the parents on this thread who are genuinely wanting to make the correct decision for their under-12 yr olds. I can see that some have changed their minds after reading reviews, information and feedback from other MNetters.
I recall my DB taking DN (5 yrs old) to see a film that was a PG on his access afternoon - because DB himself wanted to see it. My DSIL had to pick up the pieces with all the worry and questions after that one.
I took DN to see Hachi (G rated) but had thoroughly researched and checked with SIL that she felt that DN (then aged about 9 yrs and whose Daddy had died 2 yrs before) would cope with the emotional content of death, grief and long-term loyalty - albeit through the story of a dog. I am on another thread in Mumsnet Telly Addicts about that one. I was the one with tears physically streaming down my face - but DN was clearly affected (short-term) by the emotions. One of the things I had to do was give DN my phone to speak to DM so he could express his emotions as I drove us back home. He 'made a joke' of Aunty SW crying throughout "Yes, proper real tears Mum.... all down her face. No, I didn't cry Mum. I found it very, very sad but I didn't cry. No, I don't want to go for a meal now, we are going back to Aunty SW's because DDog will be missing us. Aunty SW will cook".
I had to cook extra sausages that night for DN to feed to my DDog whilst emotional order was resumed in the household. Thank goodness the DDog has a waterproof coat..... he needed it that night whilst DN feared for losing his special best friend! That was a projection of emotions from the Hachi film that neither DM or I spotted might happen.
My suggestion is that no parent ever make promises to take an under-12 to a 12A film before watching themselves or reading the excellent parental guidelines/reviews on line. Those who said "My 5 year old will be soooooo disappointed if I don't take him/her now" should think before they promise.
I happy to take the flaming for my views.