Having joined the industry at the tender age of six and since becoming one of Hollywood's highest-earning stars, Keira Knightley is probably well-placed to help out younger actors making their way in showbiz with a friendly word or two of advice.
However the 29-year-old revealed this week that far from seeking out her words of wisdom, her Say When co-star Chloe Moretz, 17, didn't seem to need much of a hand.
Speaking on The Jonathan Ross Show, Keira said: "That was what was so annoying, I didn’t feel like they were looking up to me at all, I thought, 'You should be asking me advice' and they were just all like, 'You’re not on Twitter? [That’s] sad.'
"The thing about Chloe is she absolutely does know everything so I think that our off-camera relationship was quite similar to our onscreen relationship... I’d go to her for boyfriend advice, she’d probably have really good boyfriend advice but no, she didn’t ask me many questions!"
She added during the chat, airing tomorrow, that she didn't feel she could join Chloe on Twitter either. "I did actually join Twitter for about 12 hours because I tried to be down with the kids and it just creeped me out. I didn't post anything and I was under a false name and I think because Chloe followed me, suddenly all these people started following me and posting 'I'm having a cup of tea now' and I just got completely freaked out.
"I did the same thing with Facebook, I joined that for about an hour and that still tries to follow me."
She also revealed to her fellow interviewee Paul Hollywood that she'd tried to skip the screening of one of her films as it clashed with the final of the Great British Bake Off, confessing she ended up heading out of the after-party early to watch it on catch-up. Not sure Chloe would be too impressed with that either!
Keira and Chloe star in Say When, a romantic comedy about having a quarter-life crisis in your twenties. The film is in UK cinemas 7th November and we've managed to bag a world exclusive clip for your viewing pleasure.
Images: Rex Features