Incidentally, which of Heinlein's stuff has been adapted to movie form? I've seen several movies I felt were inspired by Puppet Masters as well as at least one actual adaptation, and then there's Destination Moon. Anything else you're aware of?
The movie Destination: Moon, made in 1950, was the screen version of Rocketship Galileo; for its day, it was keenly innovative. The great George Pal was the producer; the great, great Chesley Bonestell did the matts; Heinlein vetted the script, so the science was accurate. If you ever get a chance, watch it ... it's pretty cool!
The 1950s TV series Tom Corbett: Space Cadet was based on the novel Space Cadet. When you read about various members of the Stone family in The Rolling Stones being seduced by the easy money of serial TV, this is the basis. I remember seeing the tail end of the reruns of this series when I was an itty bitty li'l girl, and I never connected it with Heinlein until I was much older.
The 1953 movie Project Moonbase was written by Heinlein, but, although it is chock-full of Heinleinistic women, it kinda sucks ... I think the suits got ahold of it. However, I think this is the movie that they built the inverted set for. There are scenes where people are walking on the ceiling and the floor; it's also got Madam President, and Colonel Briteis.
Red Planet (1994) was an animated series based on the novel of the same name. I haven't seen all of it, so I have no opinion ... but I do know they did show skating along the canals, and the gun-rights fight.