Question: What is the middle name of the actress who portrayed the main character in the film based on the first full-length biography of Ayn Rand? 
Sentence (from "The Passion of Ayn Rand"): Published by Doubleday in 1986, it was the first full-length biography of Rand, and was the basis for the 1999 film of the same name with Helen Mirren playing the part of Rand.
Relevant evidence: Yes