Prince Harry and Meghan Markle could be making yet another tell-all documentary, a royal author has claimed.
Angela Levin, a royal commentator and Duke of Sussex's own biographer, recently told talkRADIO host Mike Graham that Harry and Meghan have "a lot more" secrets to divulge about their time in the Royal Family.
She believes this is in spite of the heated debate that arose after their first tell-all interview with Oprah Winfrey that took place in March.
During the conversation between Graham and Levin, the host told his guest: "I thought after the Oprah interview that there wasn't much more he could do.
"[Harry] spilled his guts, they have given everything they have got to give, but he just keeps going on and on and on. And you think where's it going to stop?"
In response, Levin revealed to Graham that she thinks that the Sussexes have a lot more to say. She said: "I think there is another documentary in the making where they will have taken films of various rooms and maybe even of various conversations."
Meghan Markle recently gave a nod to Princess Diana in her first TV appearance since her bombshell Oprah interview:She continued: "They can then go detail by detail about how terrible certain things were. I'm waiting for that one. I think it will be yet another nail in the coffin of his relationship with his father and his brother. They can't trust him anymore."
Levin's claims of a new bombshell documentary come after Prince Harry's recent chat with Dax Shepard on his Armchair Expert podcast.

During the candid interview, the 36-year-old said that his father Prince Charles "treated me the way he was treated".
He went on: "There's a lot of genetic pain and suffering that gets passed on anyway. We as parents should be doing the most we can to try and say, 'You know what? That happened to me. I'm going to make sure that doesn't happen to you'.
"When it comes to parenting, if I've experienced some form of pain and suffering because of the pain and suffering that perhaps my father or my parents suffered, I'm gonna make sure I break that cycle so that I don't pass it on, basically."