The Summer I Turned Pretty fans are preparing for this week's series three finale - and many are desperate to know how the season will end.

The Amazon show has been a breakout hit for young viewers and the tech giant is taking no chances of spoiling the story.

For actress Corinna Brown, who plays Gemma, the secrecy began before she even auditioned.

"There were codenames galore," she remembers. "There was a codename for the title of the show, there was a codename for my character.

"I thought up until maybe two days before we started shooting that my character was called Maeve.