Ruby (represented by David Daly Associates) will play young orphan Sophie, opposite Mark Rylance in the title role. She will also be seen in the new series of CBBC's 4 O'Clock Club.
The character of Sophie was said to be inspired by Roald Dahl's own granddaughter and Steven Spielberg said of the casting: “After a lengthy search, I feel Roald Dahl himself would have found Ruby every bit as marvellous as we do. We have discovered a wonderful Sophie in Ruby Barnhill"
Production is set to begin in early 2015 with a release date scheduled for July 2016.