I agree with Peter and Lala about the films about the school itself and bullying, but Mark's post is possible of the most benefit to all you teachers out there! There is no better way to help your students learn something than a video!
I'm sure everybody has been in a room and somebody has said "can we watch a video sir?" So psychologically, you're more likely to communicate all of the needed information through video than just talking as a lot of talking isn't taken in by the human brain,
I'd say food is firmly on all of our minds hence why it ends up in every FfL film! :P
I have a strange urge to eat some solder now!
Like the metaphor by the way ;)