Unlawful Killing, a provocative documentary about the death of late Princess Diana which was screened at the Cannes depicts Prince Philip as a psychopath declaring British royals as racist gangster in tiaras.

The movie deals with the claims that Princess Diana was murdered by the British establishment and the crime was covered up.

It would be interesting to note that an inquest held 10 years after Lady Diana’s death in 1997 in a car crash in Paris has deflated any conspiracy in Diana’s death blaming that driver and pursuing vehicles were the main cause of accident.

Unlawful Killing is launched by actor Keith Allen, the father of singer Lily Allen and he has revisited all conspiracy theories in Diana’s killing.

The Britain has already criticized the movie for its showing a picture of Diana after the crash but harsh criticism about Britain’s feudal monarchy is causing further furor.