On December 13, Disney is releasing Saving Mr. Banks in theaters, the story of how Walt Disney convinced author P.L. Travers to make Mary Poppins. Fans can also revisit the original classic with the Mary Poppins 50th Anniversary Blu-ray, debuting on December 10. Walt Disney Studios Home Entertainment has released the trailer for this fully-restored classic starring Julie Andrews and Dick Van Dyke, available on Blu-ray for the first time ever. We don't have any details on pricing or special features, so stay tuned for more information.