Which star featured in Non-Stop is most widely known for her performance as Lady Mary Crawley in "Dowton Abbey"?
Non-Stop (film): 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.
i don't know