Queen Elizabeth, Prince Charles, and Prince William have reportedly threatened a “tri-household boycott” of the BBC after revealing that the broadcast corporation will screen a documentary alleging the princes planted smears against each other in the media. 

The royal family has reportedly not been allowed to see the new two-part film titled "The Princes and the Press" ahead of its release. 

Buckingham representatives have since warned that the Palace will refuse to cooperate with future BBC projects unless it is given a right to respond to the damaging allegations, the Mirror reported.

On Sunday, reports suggest that Windsor Castle is claiming the BBC have caused “upset” at the palace, adding, “The households are all united in thinking this is not fair. No one at the palace has seen it."

In turn, insiders at the corporation said BBC bosses contend the show did not breach the corporation’s guidelines, according to Daily Beast.

“You can’t make a documentary about royal journalism without mentioning briefings. It doesn’t point the finger at any individuals," they said.

The new documentary, which will air on BBC Two every Monday and Tuesday nights, will offer “context” to William and Harry’s relationship with the media. 

Its upcoming release comes amid rumors it will reprise claims by "Finding Freedom" co-author Omid Scobie, who alleged Prince William and his staff leaked reports that Harry was dealing with a mental health issue.

Harry and his wife Meghan Markle appeared in an interview with Tom Bradby in Africa. In that guesting, Markle suggested that the royal family had not checked if she was “okay” while she adjusted and struggled with royal life.

Since May, the royal family has been under unprecedented pressure when the BBC apologized over Martin Bashir's deceptive acts to secure his ill-gotten "Panorama" interview with the late Diana, the Princess of Wales, in 1995, Marie Claire noted.

Tensions over the years also include the 2007 documentary on the queen, where the BBC edited a promotional clip to make it look like Elizabeth flounced out of a shoot with Annie Leibovitz in rage.

harry william The new two-part film titled "The Princes and the Press" alleges the princes planted smears against each other in the media. Samir Hussein/WireImage