Marie Antoinette / Kirsten Dunst as Marie Antoinette
This elegant ermine-trimmed black gown appears in a brief scene where Marie exchanges an uncomfortable few obligatory words with the late king's mistress. Fortunately, it has been exhibited, so we can better appreciate its uncluttered lines and the extravagant black ribbon bow in front.
Looks like the dress itself might be made of velvet. It is very likely based on a fashion plate of the 1770s (see below), which fits, since Louis XV died in 1774.