I saw that line of trees and thought it looked disturbingly similar to the one that they crashed an Airbus into doing a similar demo about 20 years ago.
Damn, that was nearly 30 years ago at Habsheim in 1988
Jason and the Argonauts. One of my favourite childhood films. There was something about those early 60s special effects and the jerky movements of the skeletons just make them all the more unnerving. They moved like how you would expect reanimated skeletons to move.