Liam Neeson is saving the day yet again, in the thriller 'Non-Stop,' but the familiar face beside him is 'Downton Abbey' star Michelle Dockery. She's known as Lady Mary, the cold widow on the TV series, but she's starring in her first major Hollywood role alongside Neeson, and Julianne Moore. Krystin Goodwin has the details of Dockery's role and the new action film.