Walking The Walk and talking the talkOn the Empire Podcast this week, two true-life tales hit home. First it was the turn of Abi Morgan and Sarah Gavron, a writer/director pairing on their second collaboration, to pop in to chat about Suffragette, just before stepping out onto the BFI London Film Festival red carpet to do the same again, only without all the comfy podbooth chairs and cups of steaming podtea.Then the inestimable Robert Zemeckis came by to talk about his latest blend of polished storytelling and technical virtuosity, The Walk.