Revealing mistake: Bond, Quarrel, and Honey are supposed to be walking through a saltwater river and yet none of them seem to react when coming out of the water with their eyes open so obviously it's fresh water used in the river. (01:15:10)
Suggested correction: Freshwater... river.
Continuity mistake: When Bond leaves the hotel to go to Governor's House he has no pocket square. At Governor's House he has his pocket square. Then in the next scene at professor Dent's, the pocket square is gone again. (00:25:30)