Plot: Alan welcomes viewers to his sofa for celebrity chat, top musical guests and general mischievous mayhem. In this show Alan is joined by Zach Galifianakis, Ken Jeong and Ed Helms who talk about their latest film, The Hangover Part III, Ex-Corrie star, Helen Flanagan joins Alan for a catch up, while Brit actor and now US movie star, Stephen Graham chats about his new film, Blood