Watership Down the book was horrific, but I had to keep reading so I knew how it ended. I warned my little sister not to go when our school held a charity showing, but she insisted, so I had to go with her and experience that too. She was of course distraught.
Still not as traumatising to me as Bambi - the endless death and suffering was so completely unexpected as a small child. Whoever thought that was a suitable film for children? A bit of icy fun does not change anything!