"There's too much learning going on at that school."

So the other day I was wondering if there were any books that were made into a movie and then into a TV show. I've found two. Any guesses?

I wonder if there's anything that went from book to TV show to movie. This is probably less likely. Wait, I just found one.

Now there have been some movies to tv shows with books to follow. Heck Buffy was a movie, then a TV show, books and even comic books.