Question: How exactly did Leslie initially intend on crossing the Bering or Chukchi Sea from Alaska into Russia? I know he and Professor Fate end up floating on a large mass of ice to do so, but that's not exactly something you can plan for.
Chosen answer: The cars and drivers were supposed to make the trip by ship from North America across the Bering Strait to a Russian port, where they would resume the race. As it happened, Leslie and Fate were stranded in a blizzard on the North American side before they reached the ship. The ice beneath their cars unexpectedly broke away and drifted across the Bering Strait, improbably arriving at the intended destination port in Russia. As they drift into port, we see Leslie's right-hand man, Hezekiah, waving at them from the Russian dock, which is only possible if Hezekiah made the journey by the very ship that Leslie and Fate missed.
Question: Why didn't the prisoners just walk through the tunnel to Switzerland on the other side?
Answer: The majority of prisoners were heading towards Switzerland through the tunnel, only a few prisoners with weapons were acting as a rear guard to hold off the German troops chasing them and buy the prisoners time to escape.
All the prisoners were on the train. I've contended before, they didn't need to fix the track. Just leave the train on the bridge and go straight through the tunnel. That route HAD to be shorter than going around on the walkway, and they would have had a much larger head start than waiting to fix the track.
Question: Before I claim this as a continuity or factual mistake - a question: When the Arab raiding party shows up over the dune, they camp by a collection of scrub that was not all dead, some was green. There were also a number of plants in that low-lying area around the camp. Wouldn't the survivors had a better chance of surviving more days by digging for underground water in that area? Perhaps deep, but there. If they took 12 days to build the plane, it seems 2 days digging for water would have given them more time.
Answer: In the desert, the only place you can find water as at an oasis or maybe digging in a dry river bed. Those bushes would be extremely salty, and any meaningful water would be far too deep under the sand.
Answer: Bond hands Kutze a lifesaver just before they jump off the hydrofoil. Presumably he just floated there before being picked up by the Coast Guard.
Jukka Nurmi