The Disneyland TV program aired Disneyland Around the Seasons on December 18, 1966. The episode contained this great clip of a man wearing a jetpack (or rocketbelt), flying around Disneyland. The entire program can be found on the DVD Disneyland: Secrets, Stories & Magic.
Jet Pack Video (1966)
Rebuilding Tomorrowland (1966)
Bell Aviation's Rocket Pack (1964)
Jet Flying Belt is Devised to Carry Man for Miles (New York Times, 1968)
Where's My Jetpack? (2007)
Tomorrowland, Disneyland Opening Day (1955)
How Do You Like Them Apples?
The Tomorrowland That Never Was (1965)
Rocket to the Moon (1967)