First look: Diana starring Naomi Watts - Official trailer

Oscar-nominated actress Naomi Watts stars as Princess Diana at a time in the Princess’s life that was uniquely important in shaping her final years, fulfilling her search for true happiness and sealing her legacy.

The film follows Diana as she falls in love with Doctor Hasnat Khan (Naveen Andrews) and as she faces a series of challenges while working to promote charitable causes.

The film, directed by Oliver Hirschbiegel and produced by Ecosse Films, is set for release on 20 September 2013.