SPOILER ALERT: This story contains spoilers from Season 1 of “ The Other Bennet Sister ,” now streaming on BritBox . Ella Bruccoleri may be playing a Bennet sister on TV, but the actress wasn’t always a fan of Jane Austen. Bruccoleri read “Pride and Prejudice” for the first time when preparing to take on the lead role in the BBC drama “The Other Bennet Sister,” penned by Sarah Quintrell and adapted from Janice Hadlow’s novel of the same name. Playing Mary Bennet — Elizabeth’s younger and more