Oh... okay... I got it. So just looking at something can't be a sin... unless you act upon it physically... But of course we all know that this is false... for if we "look" at a women lustfully then we are committing adultry... I would say that it is not a sin to watch, or read Harry Potter... I would say that if you find it entertaining then you really need to think about it.. If you are entertained, and choose to be entertained by witchcraft.... Hm...