The West Wing TV show was well known for many things: complex story lines, an incredible ensemble cast, really fast dialogue and the walk n' talk (scenes where a conversation happens as two characters walk through the halls of the White House). The creators created this as a way to keep up the energy of the show, even when characters had to pass a lot of information along to the audience. It worked.
I recently heard a TED talk on the walk n' talk, only this time the goal wasn't audience attention (though it's a lot harder to play Angry Birds while walking than sitting in a meeting), the goal was health. It's a really short talk, just a few minutes, but it's a big idea.
While you're at it, here's a PSA on the health benefits of walking, in which the cast of the West Wing spoofs their famous walk n' talk scenes.