Hyams must have been aware of gravity to a certain extent, as there's one scene aboard the Leonov (which actually has a rotating section, so it's *expected* to have gravity) where we see a pen floating around as if zero-g.
The scene in question was in the
Leonov's bridge, which was not in the rotating portion and thus was in free fall.
the centrifuge on the Russian ship is not moving fast enough anyway so I enjoy that film on the same level I enjoy a Trek episode, it's not scientifically sound, nor does it try to hard to stick to those rules, but the characters, ideas, and drama are what the film is about.
Everything's relative. Yes,
2010 takes a few small liberties for poetic license, but it's one of the most scientifically sound movies Hollywood has ever made. Take it from someone who's long been frustrated by the scientific illiteracy of Hollywood --
2010 is joyously refreshing in the care it took with its scientific research, in the sheer scientific literacy it brings. The attention to detail in things like ship design, aerobraking, the planetary science of the Jupiter system, all of it is remarkable. I have a book,
The Odyssey File, detailing the behind-the-scenes production process, the e-mail conversations between Clarke and Hyams (which was still an innovative way of communicating back then), and it's truly admirable how dedicated Hyams was in researching the science and technology, striving to get it right. IIRC, the aerobraking scene in the movie is actually
more realistic than what Clarke wrote in the book, because the engineers they consulted with helped them improve on the details. You'd be hard pressed to find another SF movie that's on the same level of credibility and scientific literacy --
Contact is the only one I can think of. I may gripe about
2010's small mistakes, but that's only because it sets such a high standard for itself. It's infinitely better than most of the ignorant, lazy nonsense that passes for science in the movies.
One thing I recently noticed in 2010 is that everyone wears some sort of grip-shoes in the movie, which is how they're supposed to be able to walk when their should be zero-G. It's a bit of a cheat, of course, since the actors behave like they are walking in gravity.
I don't care for the conceit of grip shoes or magnetic boots or whatever. They don't make any sense as something that real space-dwellers would need. People on the Space Shuttle or the ISS don't need to have their shoes stuck to a surface; they manage just fine without it. You can maneuver much faster in freefall by pulling yourself along with handgrips and just coasting forward on momentum than you could by having to stick and unstick your feet over and over again.
Maybe you could make a tenuous case for magnetic boots in something like
Star Trek: First Contact where you're outside a ship and need to keep from drifting away into space; but there too, it makes far more sense to use a tether or maneuvering jets.