So, I've read/heard a few times that not everyone can see the scenes playing out in their heads while they read books and that it does not, in fact, seem like watching a movie being created reel by reel.

I personally cannot read books without forming at least a vague outline of what the characters and the world look like. Honestly, I think majority of readers have some form of imaginary theatre going on while they read a book which makes me think that what I read/heard is untrue. But what better place to gain enlightenment than this wonderful guild of tree preservers? :D