Hollywood’s actors’ union filed an unfair labor practice charge against Llama Productions on Monday, alleging the company replaced actors’ work by using artificial intelligence to generate Darth Vader’s voice in Fortnite without notice.

Actor union Sag-Aftra has filed a complaint over the use of artificial intelligence (AI) to recreate the voice of Star Wars villain Darth Vader in Fortnite. The union said Llama Productions - a subsidiary of Epic, which makes the hit video game - had chosen "to replace the work of human performers with AI technology".

It didn't take long after Epic Games unleashed famous Star Wars Sith lord Darth Vader into the game Fortnite -- complete with the AI-enabled voice of late actor James Earl Jones for conversations with players -- for Vader to drop the F-bomb.