Is this by chance inspired by the one handed keyboard from Children of Men?

https://youtu.be/sJO0n6kvPRU at around 2:05

One of my favorite scenes, by the way.

The patent (https://patents.google.com/patent/US6429854) was filed in 2000, and the movie seems to be from 2006, so possibly it was actually the other way around?

I doubt there was a direct inspiration in either direction beside contributing to overall pool of ideas around wearable input devices. Only commonality I see is that they are both handheld/glove like computer input devices. Nerds and sci-fi authors have been dreaming about stuff like that since the beginning of personal computers in ~1970s-1980s if not earlier. There are plenty of other examples which could have been inspiration. Even the 2000 patent, references dozen older patents for handheld or glove like input devices some of which are much closer to the 2006 movie.

Looking at the history of wearable electronics can't forget about Steve Mann and all his crazy prototypes long before 2000.

Most well known movie examples are probably Minority report(2002) and The Wizard(1989) which showed Nintendo power glove.

The history of that base design goes back to the 70s.

https://en.wikipedia.org/wiki/Keyer#Computer_interface_keyer...