 In the same year Williams portrayed Loren Caleigh in the three part BBC supernatural thriller series "The Secret of Crickley Hall".She also appeared in the independent film "Heatstroke" (2012), and the short film "Up on the Roof" (2013).In 2014, Williams was cast in the role of Lydia in the British melodramatic coming of age mystery film drama "The Falling", set in an all-girls school, for which she was awarded the London Film Critics' Circle Award for Young Performer of the Year, Evening Standard British Film Award Rising Star and in 2015 the European Shooting Stars Award at the 65th Berlin International Film Festival for her role in Carol Morley’s feature.