And watch balloons over Casablanca. Galactica. Oz. Jerry Rees, film animator and balloon fanatic, spent god knows how long digitally inserting a balloon into key scenes of 18 film classics. The least you can do is spend 6 minutes to enjoy. Trust me, it's worth it.
Note for techies: He lit a real balloon to match each scene, shot it against a green card, then key-framed all the movement with After Effects - motion blur activated.