The creators of “Peaky Blinders” talk about their new project “Maria”.

Screenwriter Steven Knight brings the final days of the late opera singer Maria Callas to the screen in the new film “Maria,” starring Angelina Jolie. Knight, who is also a producer and director, is also known for his work on the television hit “Peaky Blinders.” He told Dana Jacobson of CBS Saturday Mornings how he brings the stories to life.