Hermione and power in the movie

[Hella]

Remember when Steve Kloves tried to write something new in the movie 
but JKR told him he couldn't do that because of what happens in book 
five or six? Obviously he didn't include that scene, but there may be 
something else that he's 'touching' upon. The scene with Hermione, 
Harry, and Ron on the train. This is the scene where Hermione's 
character bugged me for some reason, as I thought it was such a 
departure from the book. First of all, she recognizes Harry (I don't 
know how, as his scar wasn't showing) and immediately smiles in 
recognition "You're Harry Potter!" She then fixes his glasses. Then 
she looks at Ron in disdain and says "And you are...?" He says "Ron 
Weasley" and she says "Pleasure" with a look of disgust upon her face.

I posted a theory on the main list that Hermione has a 'thing' for 
power, and although I vehemently disagree that she does, this scene 
from the movie makes me wonder whether this is something that Kloves 
touched upon correctly. She is snooty and downright rude to Ron, but 
very nice to famous Harry Potter (before she even knows him!) I 
wondered about this, because Kloves has stated that his favourite 
character is Hermione... does anyone else see Hermione in this way? 
The way the scene played out might be nothing than the filmmakers' 
attempts to get the audience to laugh at how cute they all are, but 
I'm wondering if there is something more.