Y'know when I was in elementary, two schools in our district got asked to be background kid characters for recess scenes. I was visible in one of them, and was put in the credits. I got to talk a lot to the main characters. I got the book signed by the producer, the whole nine yards.
Thinking back on it, the book actually really sucked, the entire movie was filmed on a low budget exclusively in my town, and I've never actually seen it in a movie theater other than the college campus it was shown to us on.
Still have the book. Fun stuff.