Margaret Qualley, the star of 2024's breakout horror hit The Substance, opened up about the challenges she faced on set. Known for her gripping performance alongside Demi Moore, the actress confessed that playing Elisabeth Sparkle required not only heavy makeup but also prosthetics. In a candid interview, she shared how she battled severe acne for a year and revealed the surprising truth behind her use of breast prosthetics. Find out the untold behind-the-scenes secrets that made The Substance even more intense for the talented actress!