幕后
这个日记本最初是汤姆·里德尔在伦敦沃克斯霍尔路的一家麻瓜商店购买的,因此它在伏地魔所有用来制造魂器的物品中,是唯一来源合法的一件。
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In an interview with J. K. Rowling, she stated that: "My sister used to commit her innermost thoughts to her diary. Her great fear was that someone would read it. That's how the idea came to me of a diary that is itself against you. You would be confiding everything to pages that aren't inanimate."
J.K.罗琳曾在采访时提到:“我的妹妹以前经常会把内心最深处的想法透露给日记。她非常害怕有人会读到它。所以我就产生了让日记本身与你做对的想法。你会把一切都倾诉到没有生命的纸页上。”
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J. K. Rowling has also stated: "Now, the diary to me is a very scary object, a really, really frightening object. This manipulative little book, the temptation particularly for a young girl to pour out her heart to a diary, which is never something I was prone to, but my sister was. The power of something that answers you back, and at the time that I wrote that I'd never been in an Internet chat room. But I've since thought "Well it's very similar." Just typing your deepest thoughts into the ether and getting answers back, and you don't know who is answering you. And so that was always a very scary image to me, in the book, and I thought it worked very well in the film. You could understand when he started writing to see these things coming back to him, and the power of that, that secret friend in your pocket."
J.K.罗琳也曾表示:“目前,日记对我来说是一种非常可怕的东西,一种非常非常让人恐惧的东西。这本能够操纵别人的小书尤其会诱惑年轻女孩向自己倾诉心声。我并不容易做这样的事,但我的妹妹却会。而当我写到日记拥有回应你的能力时,我还从没有去过互联网聊天室。但后来我一直觉得,‘唔,确实很像’。你只需要写出内心深处的想法就会得到回复,却不知道是什么人回复的你。这就是书中一直让我十分恐惧的景象。我认为它在电影里的效果也不错。这样你就会理解当他开始写下文字,又看到新的文字出现在面前时,这种口袋密友所具有的力量。”
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根据邓布利多的说法,伏地魔倾向于使用具有强大魔法且有历史意义的物品制作魂器,而选择这本日记的原因则是它证明了里德尔是斯莱特林的继承人。这本日记的主要目的并非用来保护灵魂碎片的安全,而是将它用作武器,把蛇怪再次释放出来。在这一点上,日记和纳吉尼有一定的相似之处:伏地魔也经常派纳吉尼执行任务,而不是一直将它保护起来。
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在游戏《乐高哈利·波特:第1-4年》中,第二学年关卡的名字与小说同名。在游戏中,金妮在蛇怪被杀死后,发现摆弄日记可以对里德尔的身体产生影响:如果上下摇晃日记本,里德尔也会跟着飞上飞下。于是通过这种方法阻止里德尔采取其他行动。哈利最后从蛇怪的尸体上折下一根毒牙,将日记摧毁。(这个设定,哈,汤姆任你摆布)
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汤姆·里德尔的日记是饰演金妮的演员邦妮·赖特最喜欢的电影道具。