ladyrogue
Exchange can mean many things. We exchange ideas, money... germs. Exchange is something where we have to deal with others, not just ourselves. It's important to work together and exchanging things can be a good thing.
When I think about feature, I think of feature films. The kind you see at the movie theater. They tend to be blockbusters and have lots of action in them. Could also be comic book movies, like the Avengers.