“These days, apparently, I have to offer trigger warnings for you snowflakes,” the screenwriting maestro Robert McKee declared the other day, addressing the participants in “Story,” a three-day seminar he was conducting, at a Westin near LAX, for approximately the four-hundredth time. “First of all, language. I use profanity because I like to. It keeps my energy level up.” Other potentially offensive topics: politics, religion, sex. “Writing, ideally, is rooted in reality, and if you can’t see things for what they are you’ll never write anything worth shit,” he said.
McKee, who is eighty-one, with thick white hair and brows, is on a farewell tour. (After Los Angeles, he’ll be in New York, London, Budapest, and Tel Aviv, and then, in perpetuity, online.) He has delivered his seminar to tens…