I have the film on the way from Netflix. I don't know how I never saw it when young as a local theatre used to show Disney films during the summer time. I vaguely remember having a Viewmaster cicular card for it. Anyway, it will be interesting to see how it works in the Victorian times.
From reading the book, if I were to do it as a game, I'd take the action out of 1960 and set it in the late 30s. Using the .45 Adventures team idea, I'd have different teams:
*The rescue party (Copplestone or Pulp Figures artic adventurers)
*a group of Thule-inspired SS (Brigade Games winter apparel Nazis)
*some Eskimos who want to keep people away (Copplestone)
*and some primitive Norse (CC's spectacular conversions of Copplestone's cavemen would be great; see Caprona/Caspak thread).
A team of British Commandos who want to stop the Nazis(Artizan) would be fun too.
(That said, it would take me years to paint all those figures and I don't have the ability to convert figures as CC did.)
I think I'd switch the treasure from whale-related to mammoth ivory (If you've a lost island with primitive Norse might as well have megafauna that is extinct everywhere else.) as it would be easier to find mammoths (toys, if nothing else) and to make mammoth skeletons than it would be to find bits to make stuff for whales.
I would I'd try to find some killer whale toys to waterline to stick with that part of the plot, though if they were not available I know that there is a Safari Walrus toy that would work nicely as the giant walrus to take from a different movie, Sinbad (and the Eye of the Tiger (IIRC)).
Terrain would be pretty easy (I find terrain making to be much easier than painting maybe because I can do it at night, with artificial lighting, when my son is asleep). The Lemax winter trees that get sold around Christmas time are a natural start. Then some snow piles made with styrofoam and snow powder from a RR hobby store. The Norse camp would take a little more work, though with pine bark chips hit with stone textrue spray paint and styrofoam balls halved and covered with bits of wash cloth painted/dyed in various fur colors I think it would be pretty straight forward.
Mysterioso