After Satine collapses in her opening scene in the Moulin Rouge and recovers, she thinks that she is going to see The Duke in the elephant. Harold had told her to dress like a "smoldering temptress" and you see her getting dressed in a beautiful red gown. But when they go to the next scene in the elephant Satine is in a black negligee. She ends up wearing the red dress later in the movie, but not in right scene.