Do you think Dakota Fanning would be a good bet?

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I was looking at my interests page and saw again the image of Anne Frank. On top of her image was Dakota Fanning's. I'm not sure if Anne Frank's life has been previously featured in the movie but if they plan to do another movie in the future based on her life story, I just thought Dakota could play her role because she seems to have a mysterious and intelligent character image. She acts and behaves like an adult in some movies I saw like "Hide and Seek". Do you agree or you have another actress in mind?