Revealing mistake: When Willard goes prawn fishing with Ben he helps him sorting out the prawns from the catch. However, even though he does this right after the net has been emptied out onto the deck all fish and prawns are already dead.
Continuity mistake: When the girl walks to the sleeping boy to look under his blanket, she is obviously totally naked. But when she returns to her own bed, she suddenly wears a thin white slip. (00:42:05)