In a memorable scene from "Wonder Woman," the film's titular heroine sneaks a sword into a formal function by tucking it into the back of her gown.
(Fast forward to 1:43 in the trailer below if you need a refresher.)
Facebook user Anna-Karin Linder voiced her skepticism at whether it would be possible or practical to hide a sword in that manner.
So her friend Eva Wei decided to test it for herself.
Now, others are stepping up and sharing their pics using the hashtag #WWgotyourback.