A new film about the death of Princess Diana has been banned in the UK

Unless the makers of Unlawful Killing cut 87 scenes from their hard-hitting documentary, it ­cannot legally be screened here.

The film’s director, actor Keith Allen, will now show it in Galway, Ireland, which is outside Britain’s legal jurisdiction. He insists the British public has a right to see the full version of his 90-minute film.

“This film is made in Britain but cannot be shown in Britain,” he said. “This has never happened before. But as with so much about Princess Diana the rulebook has been rewritten.”

Mr Allen started making his film in October 2007 at the beginning of the six-month inquest in London into Diana’s death.

The film was financed by Mohammed Al Fayed, the former owner of Harrods, whose son Dodi, 42, also died in the crash.

But Mr Allen insists that Mr Al Fayed had no other involvement in the production.