The Lost in Translation director will exchange vows with Phoenix frontman Mars in a civil ceremony on 27 August (11) on her dad Francis Ford Coppola's lavish estate in the small village of Bernalda.
Francis Ford Coppola's great nephew Gaetano Russo tells wwd.com, "The ceremony will mark the end of renovations at the palace, which will soon be inaugurated as a resort, open to the public."
And the Coppolas plan to turn the nuptials into a celebration for the whole village - they will screen scenes from films by both Sofia and her famous father on the walls of 10 buildings around Bernalda.
Coppola's representative confirmed the engagement in May (11). The couple has two young daughters together.