Most of us think of the phenomena of child stars as a relatively new concept, but it might just be that Christopher Robin of Winnie the Pooh fame was truly the first.
A new film tells the story behind AA Milne's much-loved books, and of the person who suffered at their success - Christopher Robin. Milne's son was thrust into the limelight after his father made him the star of the fictional series. The author and his wife, Daphne (played by Margot Robbie and Domhnall Gleeson) then roped their eight-year-old son into a relentless, gruelling publicity machine, which, unsurprisingly, led to a lot of resentment on Robin's part - especially after his fame causes him to be bullied during adolescence.
With so many child stars becoming troubled later in life (Lindsay Lohan, Britney Spears and Macaulay Culkin among them), is there a case for waiting until adulthood to pursue acting? Margot Robbie certainly thinks so.
"I started working professionally a month out of high school and, for me personally, that was perfect," Robbie told us. "It was the perfect end to my childhood and start to my adulthood and they were divided. They didn't really cross over, so I'd say any time after high school is great."
However, Gleeson - using the film's young star, Will Tilston, as an example - says that ultimately it boils down to having a supportive family and personal autonomy.
"But then you look at Will and he's so well-adjusted and it's what he wants to do," he said. "He's able to handle it. It's a case-by-case situation, you don't know who's cut out for it and who isn't. Will's got a great family around him. He's absolutely fine; it's a different thing. Christopher Robin in our story did not make that choice for himself and that's where it becomes a problem."
Watch the two talk about their childhood, fame and British accents in our exclusive interview.
Goodbye Christopher Robin arrives in cinemas on 29 September.