According to Anne Hathaway, the prequel to “The Princess Diaries 3” is coming.

Jessica Chastain and Anne Hathaway star in “Mothers’ Instinct” Oscar winners Anne Hathaway and Jessica Chastain star in a film adaptation of Barbara Abel’s thrilling novel “Mothers’ Instinct.” Anne Hathaway returns royally to Genovia as Princess Mia Thermopolis in “The…