Critics maul Diana, the movie More than 16 years after Princess Diana died, the film "Diana" has just had its world premiere in London's Leicester Square. Starring Oscar nominee Naomi Watts as the late Princess of Wales, the movie focuses on Diana's alleged romance with Pakistani heart surgeon Hasnat Khan. Watts explained how she portrayed such a famous woman: "Usually when you take on a character you work from the inside and then get to the outside and focus on the appearance and the walk and the voice and things like that, but in this case I did it in the reverse direction. Starting with the look and the voice, obviously being the most important one, and then getting into the interior life after. Naveen Andrews, who has appeared in the TV series "Lost" and "The English Patient," said he thinks his character, Khan, was a breath of fresh air for Diana: " I think what was unusual about Dr. Hasnat Khan for Diana was that he didn't really treat her like the icon that we all know her to be." Directed by German film maker Oliver Hirschbiegel - who helmed the Hitler biopic "Downfall" - the film is set during the last two years of Diana's life. He said: "Love stories don't come around that often, it seems a genre that's not done any more but I am certain the audience wants that, but lets see it's up to the audience." Critics have been less than impressed with the film, with early reviews ranging from lukewarm to scathing. More about: Historical drama, United Kingdom