Certain personal effects of the characters that were familiar to the public were added to the sets. Frears subdued Berrington's performance to avoid portraying Cherie as too much of a Lady Macbeth figure; in the scene where Cherie encourages Blair to stand for the leadership, Frears had Berrington stand with her back towards the camera. Editing and post-production went on until September. Some historical events—such as the Sheffield Rally and footage of the 1997 general election—were too costly to refilm so archive footage was used instead. Adam Curtis assisted in the editing of the archive footage.