Anyone worried that a bigger budget, digital effects, and a less personal project might lead Duncan Jones into a sophomore slump can rest easy. The ads may make make Source Code appear to be the polar opposite of his brilliantly understated, cerebral science fiction debut, Moon, but the two films have more in common than one might think; though to go into too much detail on that point would be to spoil some of its immensely satisfying plot twists. Suffice it to say that Jones is no one-hit-wonder, and Source Code shows that he can make an effects-laden action thriller just as thoughtful and engrossing as a meditative one-man show.