About the film
Gizmo! is a 1977 documentary film produced and directed by Howard Smith about improbable inventions, and uses old newsreel footage about these inventions. Early examples of parkour and buildering are also featured, including footage of an urban acrobat, John Ciampa, Frank "Cannonball" Richards and a stuntman, Arnim Dahl.
From the film's Wikipedia article (CC BY-SA 4.0).