Deliberate mistake: When Bond is fighting Zhao in the clinic, they accidentally set off the tomograph Zhao was lying in. As this machine's powerful magnetic fields indeed would pull any metallic object in, no doctor with common sense would allow sharp objects and other stuff within range. You aren't even allowed to carry watches and have to report any dental fillings. (00:43:50)
Deliberate mistake: Neither North or South Korea have wave swells anywhere near as large as shown.
Deliberate mistake: The cabin of a four-engined cargo aircraft such as the Antonov An-124 would not be whisper-quiet as it is portrayed in all scenes. Most of the plane's occupants would need to be talking in raised voices or even shouting to be heard.
Answer: By this stage, it's become a habit.
J I Cohen