Jessica Chastain on taking her grandma to the Oscars.. and Kojak

Two time Oscar nominee Jessica Chastain has told BBC Breakfast that taking her Grandmother to the awards ceremony was the best day of her life.

The star of 'The Help' and 'Zero Dark Thirty' is now starring in 'A Most Violent Year', which looks at New York in 1981 when it was plagued by crime.

Charlie caught up with her to chat about her new role... and the fictional police detective, Kojak!