Naomi Watts has transformed herself to play Lady Diana in the upcoming biopic ‘Diana’ and seems to have done a commendable job. The actress is a splitting image of the late Princess of Wales. The movie focuses on Diana`s last two years before she died in a car accident in 1997. The 44-year-old was seen shooting a scene with an Angolan child who lost her leg to a landmine and wore similar clothes as seen in a photograph of the princess, reports thesun.co.uk. The movie is directed by Oliver Hirschbiegel and is scheduled to release in 2013.