Meredith has affiliate partnerships. These do not influence editorial content, though Meredith may earn commissions for products purchased via affiliate links.

See how Rogue One recreated Peter Cushing and Carrie Fisher

Rogue One: A Star Wars Story type Movie

Ever since Rogue One hit theaters, fans have been marveling over and debating the recreation of two actors who really are from a long time ago.

The movie features the likeness of Peter Cushing, who died in 1994, as the Imperial Grand Moff Tarkin, and Princess Leia actress Carrie Fisher, who was still alive and well during the movie's creation, looking as she did at 19 during the making of 1977's original Star Wars.

Industrial Light & Magic was responsible for recreating their characters, which were a hybrid of digital animation, live actors, and performance capture technology.

Nightline reporter Clayton Sandell spoke with John Knoll, executive producer of Rogue One and chief creative officer for ILM, as well as Paul Giacoppo, digital character model supervisor, about both the artistry and the ethics of resurrecting actors who have aged out of a role or have passed on. <iframe src="http://abcnews.go.com/video/embed?id=44567006" width="685" height="400" scrolling="no" frameborder="0" class="" allowfullscreen="" resize="0" replace_attributes="1" name=""></iframe>†ú}þº–šwŽ|s÷Ñ÷¶ïwÜ]Ó{^¶

Episode Recaps Previous 'A long time ago': A Star Wars timeline By Alyssa Smith

The droids of the Star Wars universe, ranked By Devan Coggan

Here's how every Star Wars movie did at the box office By Devan Coggan

Hasbro's retro 1977 action figures recreate classic Star Wars moments By Anthony Breznican

Go Behind the Scenes of Rogue One: A Star Wars Story By Devan Coggan

Rogue One: A Star Wars Story - 15 new photos! By Anthony Breznican

Rogue One: A Star Wars Story character posters By Devan Coggan

Rogue One: New Star Wars images revealed in Card Trader By Anthony Breznican

Star Wars Rogue One trailer breakdown: See the photos By Anthony Breznican

Rogue One: Star Wars movie releases new photos By Anthony Breznican

Rogue One Details Revealed in New Toys By Anthony Breznican

Star Wars: New Rogue One photos, burning questions By Anthony Breznican

Star Wars: Rogue One characters details By Anthony Breznican Next