Question: Non-Stop starred the English actress best known for what role in Downton Abbey?

Related documents: [0]  [DOC] Michelle Suzanne Dockery (born 15 December 1981) is an English actress and singer. She is most widely known for her performance as Lady Mary Crawley in the ITV (UK) and PBS (U.S.) television period drama series "Downton Abbey" (2010–15), for which she was nominated for three consecutive Emmy Awards in the category for Outstanding Lead Actress In Drama Series, and a Golden Globe Award nomination. She made her professional stage debut in "His Dark Materials" in 2004. For her role as Eliza Doolittle in the 2007 London revival of "Pygmalion", she was nominated for the Evening Standard Award. [END] 
[1]  [DOC] Non-Stop is a 2014 American mystery action thriller film directed by Jaume Collet-Serra and starring Liam Neeson, Julianne Moore, Michelle Dockery, Lupita Nyong'o, and Scoot McNairy. An international co-production among France, the United States, and the United Kingdom, it was the first film from Silver Pictures since "Weird Science", and its first film to be distributed by Universal Pictures since the end of Universal's deal with Warner Bros.. The film received mixed to positive reviews from critics and was a box office success. [END]  
Answer: Lady Mary Crawley
Lady Mary Crawley