I remembered an old commercial I saw a couple of years ago and figured I would find it on YouTube since that is possible now and wasn’t back when it aired. Not as easy, anyway.
It’s a couple running through walls and eventually running up towards the sky on tree branches. Everything is accompagnied by Bach’s Sarabande (the only piece of classical music I have ever enjoyed listening to):
A couple of seconds after the commercial, they show us how they made it. Seems like a pretty huge work (it took two months) for just 1 min. of film.