She cannot act to save her life:
1. In the book after they save her life from the troll, Hermione becomes really nice and normal, not a swot at all, in the movie she stays like that through the whole of it.
2. On the Writing on the Wall Scene, the trio comes across the wall; Emma looks at the blood as though she was going to puke. Not to be picky or anything but isn't she supposed to be astonished and surprised, not looking as though she might throw up?
3. When Hagrid goes 'Mad and Hairy? You wouldn't be talking about me, would ya?'; Dan and Rupert say 'No' at the same time, but if you pause it and go bit after bit, you'll see that Emma was a little late saying 'No'.
4. Yes she had tears, but anyone can put drops in their eye. In fact the performance that was behind the tears was dry and unemotional. There wasn�t a shred of sorrow, anguish, hurt, rage� nothing�maybe someone should have punched Emma in the face and told her the truth, and then she may have had some emotion to draw on because that scene was dead!
5. As I sat in the theatre and watched the great hall scene I was amused by how greatly evil Alan Rickman could be, how amazed Rupert Grint acted, and of course I was repulsed by this one line that will stay scarred in my mind for the rest of my life, �Neeeeeearly Headless? How can you be neeeeeaaarly headless?� The high-pitched sound like that of a dying swine was the first of many signs of melodrama, any higher then only dogs would�ve been able to hear her.
6. She speaks like a typical child actor, they always stress pronouns which gets very annoying �I'M going to bed before EITHER of come up with another plan to get us KILLED, or worse, EXPLELLED� also she open her mouth WAY to wide on that bit and there were far too many dramatic pauses �The harp.....................it's stopped playing!�.
7. Ive seen a trout with better acting skills *and looks come to that* than miss Emma. No, honestly i have. That singing trout *Billy Bass - so i take it that its a Bass not trout* has got some lungs on it.