Angelina Jolie is at her best when she's acting like a badass. And in this new trailer for "Salt," directed by "Patriot Games" helmer Phillip Noyce, you definitely get to see her acting like a badass. Jolie plays Evelyn Salt, a CIA agent who goes on the run after a captured Russian operative implicates her as a sleeper spy in a plot to kill the U.S. president. And then she dyes her hair jet black. It's hot. Watch the trailer.