The host greets actor and writer Stephen Fry, who is promoting Troy, his latest reworking of the Greek myths and Mamma Mia star Amanda Seyfried discusses new David Fincher film Mank. Back to the Future star and Parkinson's disease activist Michael J Fox chats about his memoir No Time Like the Future: An Optimist Considers Mortality, Nina Sosanya talks about her new Christmas drama, and TV chef Jamie Oliver explains how his new book 7 Ways manages to breathe new life into staple ingredients. Plus, Dolly Parton makes a special appearance performing the seaonal staple I Saw Mommy Kissing Santa Claus