I am the poster child for childhood phobias induced by movies. I saw "Jaws" at a young age and for years couldn't watch footage of sharks or even look at images of them without having to look away. I can now handle pictures of them (my heart rate still increases) and have since snorkeled in the ocean without having to make a hasty exit, but the movie did impact me for life. And then there was "Psycho"... I couldn't close the shower curtain for months after watching it.