Oscar Isaac has revealed that some of the unused Carrie Fisher footage from The Force Awakens made it into Star Wars 9.
Oscar Isaac went on to say that the unused Carrie Fisher footage in Star Wars 9 further details the bond being forged between General Leia Organa and Poe Dameron.
When Star Wars 9 was officially announced with J.J. Abrams in the director’s chair, Lucasfilm also announced that they would be using previously unused and unseen footage of Carrie Fisher from The Force Awakens and The Last Jedi to put Leia in the movie.
As for using the unused Carrie Fisher footage from The Force Awakens and The Last Jedi, J.J. Abrams made sure to get permission from Fisher’s family beforehand.