John is currently promoting Star Wars: The Force Awakens, and he was asked about Emma as they're both playing in The Circle.
Journalist: Your next film is The Circle, with Tom Hanks and Emma Watson. Emma's been in this genre of film with Harry Potter. Did she give you advice on how to deal with fans?
John: Yeah, we've actually had long discussions about that. I did talk to her about how she handled things and for me it's just to hear her experience and then pick up things I can relate to. Obviously I'm beginning in the franchise at a different age, thank the Lord. I've had my childhood, that's over, it was great, so now it's about the next step and I've really really learnt from the stuff that she's told me.