Heidi Klum once again came through with a Halloween costume that was equal parts inventive and deranged—and while nothing will ever top the time she showed up as a worm, dressing up as your own severed hand? It certainly comes close. However, behind-the-scenes photos showing how Heidi’s costume was made seem to have potentially spoiled the upcoming Batman movie, The Batman Part II. Which, whoops!

Heidi’s costume was made by Mike Marino and the team at Prosthetic Renaissance, who are working on the new Batman movie. As Marino put it to W Magazine , “To be honest, I’m a comic book nerd, so the fact that I’m working on [ The Batman: Part II ] is a dream scenario. We’re doing some really cool makeup in this new movie, so that’s the dream right there.”

Cut to photos of Heidi’s costume being built, which fans wasted no time zooming in on.…