Lucas also allowed the use of original sound effects and music from the films.

This is radically different from showing that the original effect was spurious.

It can even reverse the sign of the original effect.

If the relationship between two variables disappears when a prior variable is controlled, the original effect has been explained away.

Instead, the original sound effects remain, and a shot of Reese cowering on the ground is inserted.

Soleil's version even features the original sound effect for the "kiss" in the song.

But the Eventide broke down and they couldn't recreate the original effect.

Nevertheless all the original Japanese sound effects are left intact.