I heard that there were a lot of accidents linked to the Amytiville Horror, and Poltergeist and it does seem strange, but I think these stories are blown out of proportion for publicity sometimes. I can remember being young and hearing that there was a curse on anyone linked with Poltergeist, and was convinced that because I had watched it on video, that l would be cursed!! (obviously very silly!) I'm torn really. I don't think I'd want to mess around with the paranormal just in case, and although I don't really think all of the stories of jinxed movies are real, I do think you shouldn't meddle with some things!! There's loads of info on the internet, so just have a browse and make your own mind up.
Linda Blair def didn't die as a child, as I've seen her as an adult.