Demi Moore had quite the Halloween surprise for fans of The Substance. In celebration of her horror film becoming able to stream on MUBI, the actress decided to share four shocking behind-the-scenes photos from the set of her latest critically acclaimed movie.

Demi Moore shared some behind-the-scenes photos that shocked her fans — at least the ones who haven't yet seen The Substance. As a Halloween treat, Moore, 61, took to her social media on Thursday, October 31,

In the first snap, Moore stared into the camera wearing a pair of glasses as the older version of her character in the film, Elisabeth Sparkle. The second shot showed the torso of the costume, featuring a surplus of saggy skin.

In one of the pictures, Moore’s face is covered in blood, to the point where even part of her shirt is stained. In all of the photos, Moore has prosthetics on her face, head and body for her transformation into an elderly woman — saggy boobs and all.

Demi Moore shared stunning behind-the-scenes photos from The Substance, which show her as the dramatically aged character Elisabeth Sparkle.