The song that plays while Lizzie (Emily Mortimer) is sitting on a bench crying after a fruitless attempt to find a "daddy" for Frankie, is written by one of the most famous contemporary Estonian composer - Arvo Pärt.
In one of Frankie's letters to his dad, the text of the letter does not correspond to the voiceover. We hear Frankie say, "Ricky Munroe told me. Trust him to put his big feet right in it." but the letter reads, "Trust him to put his size threes right in it."
When Fankies parents were married, his dad hit him when he was a baby. The blow caused Frankie to become deaf, and that's when Lizzie leaves him.
Q
How does it end?
A
Lizzie and "Davey" kiss before he leaves.Davey, Frankie's father, is dying. He asks Lizzie to bring Frankie so he could see him. She refuses.Lizzie shows Frankie the notice about his father's death.On the bus from Glasgow, Lizzie reads Frankie's latest letter: He knows the Man he met wasn't his dad, and that the real Davey passed away.Turns out the Man was Marie's brother. Lizzie and Frankie sit on a dock. Being Marie's brother, we know he will return one day.