Taika Waititi has found himself in one of the most difficult periods of his directorial career. His new film, Clara and the Sun, has received a 26 percent approval rating from critics on Rotten Tomatoes, and his Star Wars project has been put on hold. The film, starring Jenna Ortega and Amy Adams, is an adaptation of Kazuo Ishiguro’s novel and was shot in the director’s native New Zealand. The film’s reception has been particularly lukewarm in t…