Oscar Isaac dropped by The Late Show with Stephen Colbert on May 25th, which was also the 40th anniversary of Star Wars' premiere, and that, naturally, led to a discussion about Star Wars itself, and the upcoming Star Wars: The Last Jedi. As the interview progresses, Colbert mentioned that Carrie Fisher had been by the show prior to her passing, and asked Isaac both about her, and about whether he and Carrie had filmed scenes together for the film.
As Isaac explains in the clip below, the first scene he shot with Carrie was also the first day of the shoot overall. "I remember it was a scene where I come up and talk to her, and she’s very upset with me and slaps me."
Isaac goes on to explain that, as often happens on first days, they needed extra takes for director Rian Johnson to get the tone and feel right. How many? “It ended up being, like, 27 takes."
From the look of it, Isaac doesn't seem to have minded, and it's clear he misses Fisher as much as the rest of us.
The interview also covers Isaac's earlier acting days, and a discussion on Hamlet that gets deep into nerd territory on Shakespeare.