Various famous actors and actresses tell us what inspires and drives them when taking on new roles. Keira Knightley, Tom Hanks, Anne Hathaway, Ben Stiller, Judi Dench, Michael Fassbender, Natalie Portman, Leonardo DiCaprio, Saoirse Ronan, Andrew Garfield, Olivia Colman, Jason Flemyng, Olga Kurylenko, Tom Hiddleston, Jesse Eisenberg, Brie Larson, Zoe Saldana, Kristin Scott Thomas and Tom Cruise.