10 Subtle Ways Movies Foreshadowed Major Spoilers

10. Sam Rockwell's Name Appears Twice In The Opening Credits (Because He's A Clone) - Moon

Duncan Jones' terrific 2009 sci-fi film Moon centers around Sam Bell (Sam Rockwell), a man nearing the end of a three-year mining job on the far side of the Moon.

Eventually it's revealed that Sam is actually one of many clones of the original Sam Bell, a fact that's subtly and ingeniously nodded at in the film's fantastic opening titles sequence.

The credits are displayed on screen while we see Sam running on a treadmill, but if you look closely, you might notice that the text often appears twice, either as a shadow or reflection, in the environment.

This is especially noticeable when Sam Rockwell's own credit appears, with a smaller version also visible to the left-hand side of the frame.

This was clearly an artistic choice intended to slyly nod at the film's chief conceit centered around doubles and clones.

That the clones also have a fixed three-year lifespan is even symbolised by the shadows and reflections being less-refined than the upfront text - quite literally, pale imitations.

Hell, the film's poster even hints at the twist, what with Rockwell's name "echoing" numerous times in gradually degrading detail, hinting at the clone reveal.