Los Angeles AP  —  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. The Screen Actors Guild-American Federation of Television and Radio Artists said Llama Productions, a subsidiary of gaming giant Epic Games, “failed and refused to bargain in good faith with the union” in the last six months. The company made