Source Code is perfectly agreeable entertainment, so long as you don’t ask too much of it. It has an intriguing science-fiction premise that hints at deeper issues but, in truth, the movie doesn’t want to disturb us or make us think too much.
Duncan Jones didn’t write the screenplay—which is credited to Ben Ripley—but it bears a passing resemblance to his debut feature Moon, in that its protagonist (Jake Gyllenhaal) spends much of the film communicating with an authority figure (Vera Farmiga) over a telecommunication system. As part of an experimental military program he is—
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