Re: STAR TREK the enemy of LOST IN SPACE?
The scenes with giants and little people in the same frame were often done entirely in-camera, by positioning the giant actor in the foreground and the little actor much further back to appear smaller in a 2-D picture. The shots were all story-boarded and designed in advance with mathematical precision regarding distances, angles, eye-lines, and what lens to use.
The result was a clean, "real" shot with no matte lines or weird fx artifacts. I wonder if Star Trek's "Who Mourns for Adonais" would have benefitted from this approach after Apollo has his growth spurt, and Kirk is the little guy.
Walt Disney had earlier used this false perspective set/camera angle trick in Darby O'Gill and the Little People
, and it shows up again in Peter Jackson's Lord of the Rings
I think the technique was pioneered by Norman Dawn around 1915, though not certain. He did extensive work with glass shots and hanging miniatures.
Curly: Moe, Larry, the cheese! Moe, Larry, the cheese! (Horses Collars, 1935)