Robert Heinlein's 1950 movie collaboration with George Pal,
Destination Moon, is rightly considered
one of the classics of film science fiction, winning an Oscar
for Best Special Effects. On the other hand, his 1953 effort with Richard
Talmadge, Project Moonbase, is largely
forgotten, and deservedly so. One of the key moments in the film is
the crew's guiding a supply ship in for a landing at the
newly-established Moon base, and the cinematic realisation of this
was, shall we say, at no risk of an Oscar nomination.
Landing by Hand on the Moon
presents a video clip of
this less-than-magic moment in movie special effects and an
explanation (hidden until you click to display it) of what you're
seeing in the clip.