We all know part of the magic of Hollywood is its ability to keep the characters we love alive. But how far is too far in trying to keep the actors themselves alive? Not long after the death of Philip... See More
We all know part of the magic of Hollywood is its ability to keep the characters we love alive. But how far is too far in trying to keep the actors themselves alive? Not long after the death of Philip Seymour Hoffman, we learned they plan to keep his role in two movies with help from technology. Here's ABC's bazi kanani. Reporter: Technology resurrecting stars from Hollywood's golden age, that digital magic extending to the silver screen. ? Moon river ? Reporter: Actor Philip Seymour Hoffman will appear in the last two installments of the "Hunger games" series, and new reports that Paul walker will still star in "Fast and furious 7." I'm not going anywhere. Reporter: Despite many untaped scenes. Beyond a body double and voice imitation, studios can replace a missing actor with a computer generated image of him. The biggest issue is the visual. As humans, we are very sensitive to faces. And if something is unusual, we can tell. Reporter: Cgi can take a team almost a year to recreate several scenes and cost millions. And using it after a tragic death raises ethical questions. Some people might find it a little weird or odd or upsetting, even. Reporter: The technology does give fans one more opportunity to see their favstite ars in action, even if it's just an image. Bazi kanani, ABC news, los Angeles.
This transcript has been automatically generated and may not be 100% accurate.