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Okay, i rented the movie, i didn't buy it, and on the rented version, it has a "extra credit" icon on the screen, and when i clicked on it, it said to insert that CD ROM...i didn't get another cd, i just got the one with the movie and the one with the games and stuff on it.  i figured out how to get to the deleted scenes, that was easy, but i don't know what the extra credit cd is for...do you get it when you buy the movie?

it's 'enemy of the HEIR'...not her :)

I'm new to all of this Harry Potter stuff, i didn't start reading the books about two months before the movie came out...on video.  and it only took me two weeks to read all four books, cause after the first one i was hooked! :)
anyway, something always bugged me about the story.  I know it's something little and doesn't matter, but it bugs me just the same:
okay, if a person is muggle-born, how do they become a wizard?  do they just get a letter out of the blue from a school they've never heard of and send their kids off to learn magic?  I mean, how did Hogwarts know that little muggle Lily would be such a great witch?  how did they know to send her an invitation being a muggle?  does ANYONE understand what i'm talking about? It makes sense in my head :)
If you're a muggle and you've never heard of Hogwarts before, and you never knew there were witches and wizards walking around, like Lily Potter was, how do you get accepted to Hogwarts?  
Please someone let me know that this makes sense not only to me! :)