Actress Julianne Moore is convinced teachers, parents and teenagers need to see her Carrie movie revamp - because it might prevent another school massacre like Columbine or Newtown.

The Hours star plays the isolated title character's domineering and unbalanced mum in the latest adaptation of Stephen King's novel, and she insists Chloe Grace Moretz' portrayal of Carrie will highlight the issues faced by marginalised, lonely kids.

She tells Wenn, "The character of Carrie was based on two girls Stephen King had gone to high school with; both of whom were extremely isolated and marginalised by everyone at school - one by extreme poverty and the other by her parent's extreme religious views. He combined them and came up with the idea of Carrie. They both died in their 20s of different causes.

"The story is really what the cost of that social isolation is; when you do marginalise people what are the consequences?

"The book is about the cause of social isolation and the rage that ensues from that. I don't want to minimise what happened in Newtown but that was a boy who was extremely socially isolated. He spent a lot of time alone. I think there are real dangers to people being left out."

And Moore admits she is making sure her kids go out of their way to include marginalised kids in their class: "I always say, 'Make sure that no one is sitting alone. Pay attention to people by themselves. No one should have to go through that. Everyone wants to feel included and make an effort in that direction'. They're both very friendly and they do do that."

December (13) marks the first anniversary of the Sandy Hook Elementary massacre in Newtown, Connecticut, where a lone gunman killed 20 students before turning the gun on himself.