JOHNSON Sophomores.

As you make your way through Star Wars High —

OSCAR ISAAC I was so high the whole time. [Laughter]

— there are actors you were paired with and worked with closely on the last film. What was it like to have those relationships scrambled and rearranged on “The Last Jedi”?

ISAAC What Rian did so well was that he asked the really tough questions. Not only of the characters, but also about the themes that “Star Wars” brings up. What is to be a Jedi? What is it to be a hero? What is it to be, in my case, a hotshot pilot? And then try to find the opposite of that — the hardest thing, the thing that’s furthest away, and have that be what the character has to deal with. Even in pairing the characters, he’s taking away what you know, and making you as uncomfortable as possible.

Was it bittersweet to have Finn and Rey, our heroes from “The Force Awakens,” split up?

JOHN BOYEGA It was horrible when I read the script for the first time and I wasn’t with her. We auditioned together. We went through this whole experience together. To be split apart was scary for me. But then I understood that is something that we could draw from — something that Finn really feels, and Rey really feels. And then I was like, “Oh! Rian does know what he’s doing.” [Laughter]

RIDLEY I felt the same. When I read the script, I didn’t cry right away. I was like, “Wobble, wobble, wobble, [shaky voice] I’m probably going to cry and I need to see Rian.” Then I went into Rian’s office and I was crying my eyes out. I’m not great with new people. I think Mark can attest to that. [Silence, then laughter]

ADAM DRIVER No one says, “No, you’re great!” Everyone else is like, “Yeah.”

RIDLEY I find it really difficult to relax. And then that’s influencing someone else’s performance. You don’t want to be the thing that’s holding something back, when there’s me, going, [awkwardly] “So … how’d you get into all this?” Mark and I were lucky enough to have proper rehearsal time, and then we could talk through everything with Rian. It ended up feeling great, but it was nerve-racking.