Actress Carrie Fisher, who was best known for her role as Princess Leia in the Star Wars series, died in 2016.

She recently appeared in the 2019 film Rise of Skywalker, but how was this possible?

BBC Click speaks to the visual effects supervisor, Roger Guyett and animation supervisor, Paul Kavanagh of ILM to find out more.

See more at Click's website and @BBCClick