It was another busy week for some of Hollywood's hardest-working stars. In LA, Ashton Kutcher channeled a '70s-era Steve Jobs for the biopic Jobs, and Christian Bale hung out on the set of Knight of Cups in Marina del Ray. Liam Hemsworth and Emma Roberts were spotted in New Orleans filming Empire State, while in NYC Ben Stiller hopped on a skateboard on the set of The Secret Life of Walter Mitty. In England, a cape-clad Angelina Jolie dressed as the evil queen for Maleficent, sharing the scene with some wild costars. Click through to see more celebs at work this week!