Question: Keira Knightley began acting as a child and had several supporting roles such as in "Everest", but became famous after landing which role?
Sentence (from "Everest (2015 film)"): It is based on the real events of the 1996 Mount Everest disaster, and focuses on the survival attempts of two expedition groups, one led by Rob Hall (Clarke) and the other by Scott Fischer (Gyllenhaal).
Relevant evidence: No