Based on the books by P.L. Travers and the classic Walt Disney film, Mary Poppins is the story of a nanny who arrives at 17 Cherry Tree Lane in London — the home of the Banks family — with magical results. Two-time Joseph Jefferson Award winner Summer Naomi Smart stars in the title role. Gary Griffin directs. The production plays through Jan. 5 at the Marriott Theatre in Lincolnshire, IL.