I would like to quote what Paul Washer said.
Two years ago I read an article from a very well established reformed magazine. It was talking about Harry Potter….. In a way I want you to know that Harry Potter is a rebuke also to the church. When a child reads Harry Potter, they see wonder and wildness, and life, and magic, and struggle, and victory, and defeat, and everything that we’re made up to be. Now, when they see your Christianity all they see is a pew and a cold sermon. God did not come to give us merely correct thinking. He came to give us life! …. And you can experience that life even if your body is screaming with pain. To feed upon Christ!
Here’s a video clip.