Take a peek at the note written on the pattern envelope for Vogue 7069 (one darn pretty dress!):
Ten yards of 45 inch fabric? Could that really be the required yardage?!
I found a listing for it over at Lanetz Living (it's sold out) that shows the back view -- yup, depending on the size, fabric width and view, it calls for anywhere from 6 to 12 yards of fabric. Can you imagine how long it would take to do all of those pleats?!
I bet the resulting dress would be a blast to wear, though -- so fun and twirly! Alas, it would also be fraught with danger -- the slightest breeze or smallest subway grate would send it flying over your head, don't you think? Your underwear would really have to be as spectacular as the dress itself.