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 "Helen Mirren"): She received an Olivier Award for Best Actress in 2013 for her West End performance in "The Audience", in which she also portrayed Elizabeth II, and in 2015 she won the Tony Award for Best Actress in a Play for her Broadway performance in the play.
Relevant evidence: No