Deliberate mistake: Frankie's voice-over reading of the letter to his father does not match the text of the letter. He says, "Ricky Munroe told me. Trust him to put his big feet right in it. I've told him hundreds and hundreds of times." but the letter reads, "Ricky Munroe told me. Trust him to put his size threes right in it. He is rubbish at secrets. I've told him hundreds and hundreds of times." (00:21:15)
Continuity mistake: When Lizzie paints her mother's nails she gets excess polish on the cuticle of the first finger, but when she paints the second nail the first finger is perfect. (01:05:40)
Continuity mistake: When Frankie and Lizzie meet the Stranger on the docks Sunday at 1:00pm, it is quite overcast when the Stranger asks Frankie, "Right. You choose, where do you want to go?" The shot immediately moves to a hillside overlooking the docks and the skies are almost completely clear and blue. We know a narrow window of time has passed based on information on what transpires before and after this scene. (01:10:50)
Continuity mistake: When the group is seated at a table and having drinks at the back of the Dance Hall, they toast each other (note Ally's hand on Marie's shoulder during the entire scene). Then when Marie makes her inappropriately familiar quip about the Strangers cigarettes, Ally's hand is still on her shoulder. Yet when the Master of Ceremony, who is Ally, is at center stage to introduce "Lizzie's Song". Ally appears to be in two places at once. (01:17:05)
Continuity mistake: When Frankie takes the kid to see the cargo, they swap the way they're standing: From the back they are both facing the ship; from the front, Frankie is standing sideways.