The news was revealed at the Edinburgh TV Festival by Sean Doyle, Disney+ director of unscripted content.
He said the streamer would have “exclusive access” to Rooney, who is the wife of former England football captain Wayne Rooney, for the three-part documentary.
Rooney was embroiled in a high-profile legal battle with Rebekah Vardy - wife of footy star Jamie Vardy - earlier this year.
The pair were in court after Rooney posted a message on Instagram accusing Vardy of leaking stories about her to the press, and Vardy - who denied it - sued for libel.
It's thought there had been a lot of interest from TV bosses and streaming services over making a programme about the high-profile drama.
Doyle said it was “a bit surprising” for Disney+ to sign up to do a deal with Rooney, 36, but that hers is a story that “people want to hear”.
But he added that he thinks new content at Disney, including the new Kardashian reality series, is maybe “changing people’s expectations” about it.
Asked why Disney wanted to document the court battle, he said: “Well what a story, first and foremost. Everything we do has to be an amazing story that has amazing twists and turns in it."
Johanna Devereaux, vice president of scripted content at Disney+, said the streaming service’s content does not have to fit the “family friendly” stereotype of the Walt Disney Company, but that they do tend to gravitate to stories with a “bit of hope”.
Additional reporting from PA.
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