I might be alone in this, but so far as I'm concerned, no matter how cheesy the book... anything that gets kids to READ nowadays is a good thing. Yes, the movie will probably suck. But I'm glad at least it will maybe catch some more interest in the books, if not just because perhaps some kid who's never read anything recreationally before might be interested in giving it a shot.
That said, it really does look bad, but you never know until you try it!