Paula Patton is becoming a bad-ass. Well, at least on screen when she stars opposite Tom Cruise in "Mission: Impossible 4." Patton won the coveted role after acing her screen test with Cruise. ("This was the highlight of my career.") The plot details in the espionage action-thriller are hush-hush, but the actress and new mom did let ESSENCE.com know one thing -- she's going to be one fierce spy. "I don't know much because I haven't read the script, but I do know she's a spy who joins Ethan Hunt's team and she gives him a run for his money..."