Making an appearance on Sirius XM with host John Fugelsang on Tuesday, the actor, 40, said it will explore the bond forged between the two characters.
Discussing how he felt while looking back at the many scenes they shared in The Last Jedi, Oscar explained: ‘[Carrie] and I worked together so much.
Star Wars Episode IX: Oscar Isaac revealed some of Carrie Fisher’s unused footage will explore the bond between Leia Organa and Poe Dameron, while on Sirius XM on Tuesday
‘We would talk about the scenes, and we got very tight during the shooting of that. So it was a beautiful thing to see, and it gets carried over into the new film as well.’
While he claimed it was ‘definitely an unusual thing’ to include the unused footage in the forthcoming Star Wars film, he added: ‘I also think it was right to engage with her character, and not just let it be something that fades away.’
Carrie died of a cardiac arrest at the age of 60 in December 2016, and she played the role of Leia since the first Star Wars film, which was released in 1977.
Moving: Discussing how he felt looking back at the scenes they shared in The Last Jedi, Oscar explained: ‘it was a beautiful thing to see, and it gets carried over into the new film as well’
It was revealed in July last year that J.J. Abrams would be using unreleased scenes of her in the next Star Wars film, following her tragic death.
Of using the footage, which were shot in 2015’s The Force Awakens, the director said in a statement: ‘Finding a truly satisfying conclusion to the Skywalker saga without her eluded us. We were never going to recast, or use a CG character.’
‘With the support and blessing from her daughter, Billie, we have found a way to honour Carrie’s legacy and role as Leia in Episode IX by using unseen footage we shot together in Episode VII.’
But in December, Carrie’s brother Todd, 60, revealed the actresses appearance in the final film of the sequel trilogy is ‘going to look like it was meant to be.’
Forever an icon: Carrie died of a cardiac arrest at the age of 60 in December 2016, and she played the role of Leia since the first Star Wars film, which debuted in 1977
Speaking to Good Morning America, the director said: There’s a lot of minutes of footage. I don’t mean just outtakes. This is unused, new content that could be woven into the storyline.’
‘That’s what’s going to give everybody such a great kick, it’s going to look like it was meant to be. Like it was shot yesterday.’
While Todd admitted he wasn’t able to say more on the subject, he did say that he and Carrie’s family are ‘thrilled at what’s been done.’
Earlier this week, Oscar also confirmed on The Today Show that the new film will mark the ‘end of the entire Skywalker saga’ in the franchise.
Their story will end: Earlier this week, Oscar also confirmed on The Today Show that the new film will mark the ‘end of the entire Skywalker saga’ in the franchise
The Inside Llewelyn Davis star, who plays Resistance pilot Poe Dameron, explained: ‘It is the end of the entire Skywalker saga, nine stories and this is the culmination of the thing.’
‘I think what J.J. has done, and really the whole Lucas team, is going to be incredibly fulfilling and also special for us because you will get to learn a lot more new things about these characters.
The Skywalker saga began in 1977 with George Lucas’ ground-breaking first film of the space opera series, which saw the rise of iconic characters Luke Skywalker (Mark Hamill), Han Solo (Harrison Ford) and Princess Leia.
It also featured Darth Vader, Luke and Leia’s father, whose ominous black costume and deep voice made him one of cinema’s most prolific villains.
Legendary: The Skywalker saga began in 1977 with George Lucas’ first film, which featured Darth Vader, Luke and Leia’s father, who became one of cinema’s most prolific villains
In the as-yet-untitled new film, Oscar will be joined by co-stars Daisy Ridley, Mark, Adam Driver, John Boyega, Kelly Marie Tran and Domhnall Gleeson.
Original Star Wars actor Billie Dee Williams will also return to the franchise for the first time in the sequel trilogy to reprise his role as Lando Calrissian.
Filming for Episode IX wrapped in February, with the director sharing a tribute to the cast and crew alongside an image of John, Oscar and Daisy hugging on set.
Star Wars: Episode IX is due to be released on December 20, 2019.
That’s a wrap! Filming for Episode IX wrapped in February, with the director sharing a tribute to the cast and crew alongside an image of John Boyega, Oscar and Daisy Ridley hugging on set