If my mum was in any way fazed by this then we wouldn’t have a real relationship,’ she says with a grin.
The plot involves Lucy, her brother Edmund (played by 19-year-old Skandar Keynes) and their cousin Eustace (17-year-old Will Poulter) entering the world of Narnia through a picture of a ship and meeting up again with Prince Caspian (29-year-old Ben Barnes).
The film was shot in Australia over a five-month period, much of which was spent on or under water.
Lucy is the younger sibling of Peter, Edmund and Susan, and is arguably the most important of the four Pevensie children, with a closer link to Aslan the lion and a stronger belief in the magical world of Narnia.
The Voyage of the Dawn Treader is regarded as Lucy’s book, and the two eldest siblings, Susan and Peter, are not involved (although they do, Georgie confides, make a guest appearance in the film).
We had to continue shooting the next day, so they applied tons of make-up and digitally reshaped my face!
’ The actors playing the four main characters are, Georgie says, firm friends, but there was never any question of romance between her and Skandar (who is now studying at Cambridge University) or Will (who she believes will be the ‘next big thing’).
No one has shouted at me before, but now that I am a bit older maybe they will!
’ she says, visibly brightening at the idea of red-carpet adulation.
‘I take that as a compliment because she is so smart, but I don’t think I could front a Burberry campaign or anything like that.
I don’t think modelling is something I could do because I like food too much.
Like Emma Watson of Harry Potter fame, Georgie Henley made her screen debut aged nine in a hugely successful children’s film – and has blossomed into a sassy, stylish young woman.