Harvey hits Manuel twice on the left shin with an oar. Manuel then boasts to the crew that Harvey would do anything for him, "Even break my leg, maybe, too.", as he holds up and rubs his right leg.
Manuel holds a struggling Harvey from behind by the neck of Harvey's shirt with his left hand and the back of Harvey's pants with his right hand. Manuel says a line in close-up, then a close-up of Harvey shows Manuel holding the shirt with his right hand.
When Disko hits him Harvey falls over but keeps his hat on. In the next shot Havery has no hat on.
Harvey and Mr. Cheyne each throw a wreath into the water. Mr. Cheyne's wreath lands next to Harvey's. However, when shown again, Mr. Cheyne's wreath sits partially atop of Harvey's wreath as they float away on the outgoing tide.
When tucking in Harvey, Mr. Cheyne puts the sheet over him covering everything but Harvey's face. In the next shot the sheet doesn't even cover Harvey's chest.
When Manuel is in the water and speaks Portuguese.
(at around 1h 55 mins) There is a camera shadow on the dory.
It does not make sense that Harvey's teachers could expect him to be independent if he is only ten. In the novel he was fifteen.
Manuel has many siblings, yet Daniel says Manuel did not have any relatives.
When planning the Atlantic crossing, Mr. Cheyne is told that the trip would happen on the Queen Anne. A lifeboat on the ship is shown with a name that is partially obscured, but appears to say QUEEN MARY. "QUEEN" is shown in its entirety, and the letters "AR" are shown in the second word.
Experienced seaman Disko does not have the We're Here or her dories using lamps to alert other vessels of their presence in the dense fog.
Despite Long Jack's words, Harvey will not need to start shaving for several more years.
It is unexplained why Harvey Cheyne has an English accent.