In the upcoming book The 30 Rock Book: Inside the Iconic Show, from Blerg to EGOT, author Mike Roe reports that director Adam Bernstein angered Baldwin during filming of Season 1 simply by holding his thumbs up to frame a shot. “According to (editor Doug) Abel, Alec turned to (Bernstein) and said that if he did that one more time, he was going to assault him. And he didn’t say it with a smile on his face,” writes Roe in the book, which will be released on Nov. 30. Abel believes the animosity led Bernstein, who shared an Emmy for his work on 30 Rock Season 1, to leave the show after only six episodes. Bernstein, the husband of Friends alum Jessica Hecht, went on to direct Fargo and eight episodes of Breaking Bad.