Susan Helene Gottfried said...
Let's give Petunia her own thread.
Susan was responding to my speculation about how Petunia turned out the way she did. Was it Vernon's influence? Did her envy of Lily going to Hogwarts (which was bad enough that she wrote asking to be allowed to attend) get to her?
And what about how the book portrays Petunia as being as nasty as Vernon (or almost?) but the movies portray her as much more passive?