SUMMARY:They say blue and green should never be seen. But in this instance that rule is wavered.
CHAMPAGNE: I quite like the bit early on in the piece were Patti & Lulu do that clicking fingers dance infront of each other.
SPOTTED:As TRBM rightly notes, its Sues costume that deteriorates towards the end. If you look closely you see what i can assume is some sort of fixing clasp come flying off (see pic below). Then on the next scene a blue part of Sues costume is lying prone on the ground.
It would have been interesting if the jettisoned piece had come off earlier whether they would have had to re-shoot again, as it may have become a tripping hazard right in the middle of the dance area.