In this week's Movie Date podcast, Rafer and Kristen hop into the WABAC machine for a trip to the rebooted world of "Mr. Peabody & Sherman" and the sword and sandal past of "300: Rise of An Empire." And bonus: to help them better understand the true identity of Mister Peabody, they are joined by Sarah Montague, WNYC's resident dog expert, who covers, among other dog-related events, the Westminster Kennel Club dog show.