Unfortunately the cast was made standing up, making movements such as sitting down somewhat difficult and uncomfortable. According to actor Rudolf Klein-Rogge, it was very tight and confining, pinching and scratching the actress despite many attempts by the stage hands to file away all sharp edges. People took pity on Brigitte Helm and slipped coins into slots in the armour, which she collected to buy chocolate in the canteen. The scene where Rotwang presents his creation to Fredersen took nine days to film in January 1926. Director Fritz Lang shot the scene so many times that an exhausted Brigitte Helm asked him why she should play the role, when no one would possibly know she was inside the costume. Lang answered, "I'd know." Helm's son believes that Lang was trying to teach the 17-year-old girl some discipline and mould her in his image, almost in analogy to the characters she played. The costume allowed little freedom of movement. To help Helm get up from the throne made of sheet metal, a wooden rig was constructed, so that a stage hand could give her a push. Behind the scenes stills show the rig and the hinged plate on the seat.