She looked to Xenia Onatopp as a point of inspiration for her performance .
Marlohe had secured the role after two auditions for director Sam Mendes and casting director Debbie McWilliams .
Marlohe looked to Xenia Onatopp as a point of inspiration for Marlohe 's performance .
Marlohe had secured the role after two auditions for director Sam Mendes and casting director Debbie McWilliams .