Question: Which star featured in Non-Stop is most widely known for her performance as Lady Mary Crawley in "Dowton Abbey"?
Sentence (from "Non-Stop (film)"): 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..
Relevant evidence: No