Andy Cohen responds to Bravo star Brandi Glanville's bombshell sexual harassment claim, Natalie Portman says film is in 'decline' as YouTubers become more popular than movie stars, J. Robert Oppenheimer's grandson joins 'TMZ Live' to talk about the dangers of A.I., nuclear weapons and climate change, and Wendy Williams' guardian sues Lifetime's parent company ahead of documentary premiere.