Coincidence?!?

[Lord Voldemort]

After making the second movie, the actor playing Dumbledore passed away. Now, in Rowling's sixth book, Dumbledore himself dies. Do you think she did this on purpose? If the actor hadn't died do you think the story would've changed any?

[Ron Weasley]

Hmm... Interesting point. I think J.K had all the book's main points already written down though, way before the movies came out so it's probably just a coincidence. However I could be wrong.