So this dress took me a little while to figure out. I initially designed it with a solid cape down the back. This design had a big flaw in that there was no direct access to the zipper, so it made putting on and taking off the garment a royal pain-the-neck. The reason I initially designed it was because I only went by a picture of Marylin’s costume from the front. It was only on later inspection that I saw that the “cape” she wore was actually split in two.
In the movie, the cape and the dress are actually two separate pieces. but my dress combines the two.