Keith Allen’s controversial documentary film Unlawful Killing on Princess Diana will be shown in the theaters soon.

The documentary Unlawful Killing was financed by Dodi-Al-Fayed's billionaire father, Mohamed, who has lined up several distribution deals in several territories, including Russia, Spain and Benelux (Belgium, the Netherlands, Luxembourg).

The documentary screened for the first time at the Cannes Film Festival in May, and received mixed reviews from the viewers. There's also active interest in the U.S., according to producers.

The documentary Unlawful Killing by actor and filmmaker Keith Allen is based on Princess Diana and her boy friend Dodi who died in a car accident.

Allen takes the title of the film from the verdict of an official British inquest into Diana's 1997 death in a Paris car crash. The jury ruled that the princess was unlawfully killed, but deflated claims of a conspiracy, blaming grossly negligent driving by her drunk and speeding driver and pursuing paparazzi vehicles, the Hollywood Reporter said.

Allen was turned down by the British film companies and broadcasters for the documentary but Mohamed Al-Fayed, father of Dodi financed the project.

Conor Nolan, who works for Al-Fayed's production company, told the Hollywood Reporter that he flew to the U.S. in early June to meet the potential buyers and has received a few offers.

We're determined to have a major North American release, whether in theaters or on television, said Nolan. “Distributors in Japan, Italy and Australia are also interested.”

The documentary will not be shown in U.K. cinemas unless 87 cuts are made to comply with the nation's libel laws.

Below is the link of the preview of the movie Unlawful Killing: