Prince Harry is being accused of plotting another "revenge" attack against his father, with insiders telling RadarOnline.com he is planning to dissect King Charles ' marriage to Princess Diana in a shock new Netflix documentary to mark the upcoming 30th anniversary of her death.

And insiders tell us its release could derail any hopes of reconciliation between the royal rebel and his cancer-hit dad . Article continues below advertisement

Diana Film Could End Harry's Peace Talks with King

The Duke of Sussex, 40, is due back in the UK in September for the WellChild Awards, with reports suggesting he may reunite with Charles, 76, for the first time in 20 months.

The trip coincides with the third anniversary of Queen Elizabeth 's death on September 8 , a day when the King is

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