Lucille is not wearing a ring in the hours immediately following the wedding, but a couple days later she is.
Prior to the shipwreck, there are at least six men on board. Only two Westerners are rescued, with no mention of the missing four crew.
Val told Eric to be at the boat dock at five a.m. for the diving trip; but, in some of the shots just after he arrives, the sun is obviously directly overhead, indicating mid-day.