“Ms. Stritch’s career began in the 1940s and spanned almost 70 years. She made her fair share of appearances in movies, including Woody Allen’s “September” (1987) and “Small Time Crooks” (2000), and on television; well into her 80s, she had a recurring role on the NBC comedy “30 Rock” as the domineering mother of the television executive played by Alec Baldwin.”