Angelina Jolie is back in action with her sure-to-be summer blockbuster Salt. Playing a CIA officer who is accused of spying for the Russians, the athletic beauty unleashes her secret agent skills, from scaling walls to hijacking motorcycles, to avoid being caught. Liev Schreiber also stars as a fellow agent who helps Jolie unearth the truth. Salt hits theaters on July 23rd. Check out the trailer and a shot of Jolie in tough-girl mode after the jump.