The new film adaptation of Wuthering Heights has sparked controversy online after the director, Emerald Fennell, announced that she would cast a white actor to play Heathcliff. Critics have said the decision ignores references to Heathcliff as an outsider in Emily Brontë’s original text. In recent years, there’s been a growing business to tackle cultural insensitivities in film – cultural consultancy. Co-founder of Good Form cultural consultancy, Melissa Legarda, talks about the power of authenticity in film and what her role entails.