Like its star, Salt is a spare and lean piece of work; it’s everything a modern action movie should be, a picture made with confidence but not arrogance, one that believes so wholeheartedly in its outlandish plot twists that they come to make perfect alt-universe sense. The story — the script is by Kurt Wimmer — draws numerous outrageous loops, but Noyce neither dwells on them ponderously nor speeds through them in a misguided attempt to energize his audience. And he makes fine use of his star, an actress whose lanky gait is as delicious to watch as her spring-loaded leaps are. Noyce frames the movie around Jolie’s finely tuned sense of movement, and yet it’s her expressiveness that anchors the story emotionally: In an old-fashioned, old-Hollywood way, Noyce and his cinematographer, Robert Elswit, are wholly alive to her face and all its possibilities. [. . .] Noyce has made his share of action thrillers (he’s the director behind the Tom Clancy adaptations Patriot Games and Clear...