Oscar Isaac is on the cover of Rolling Stone, and while the article is a straight-up profile, we do learn a few things about The Force Awakens:
All of the funny lines – including one about Poe being unable to hear Adam Driver’s Kylo Ren through his helmet, and the “who talks first” exchange – were added in reshoots, and Isaac improvised some of them. He’s always pushing to complicate and deepen Poe, who started as little more than a charming archetype. “We’re making shit up as we go,” he says.
As for Episode VII:
“In the new film, there’s a lot more to do,” Isaac says. “What happens now is the heroes get tested. All three of them” – Poe, Daisy Ridley’s Rey and John Boyega’s Finn – “get tested immensely.” And how’s BB-8 doing? “BB-8’s doing all right. BB-8 gets tested too! Everybody gets tested! It’s the dark second chapter, but not really dark.”
P.S. The dog’s name is Moby.