[snypher]

You do realize he have recorded the walk at any point? The shot of the rocket launching could have been a month later.

[OhMeadhbh]

How are you suggesting they composited the two sequences (Burke walking, rocket launching) together in 1978?

[hyperbovine]

What? I'm talking the final scene where he says "...that" and the thing immediately lights up. Absent a green screen, that's damn impressive.