Also, all released versions of The Cage include a music sting composed for The Man Trap two years after the fact. When the Keeper says "we may now begin the experiment," the music hits. It's actually a variation on the original theme written for Where No Man Has Gone Before. It was put there in The Menagerie part 2 to accent the line (and it works great), but it went unnoticed when the color clips from the two parter were used for the restoration. Nobody ever removed it for later restorations.