Fleetwood Mac producer sues Tony Award-winning Broadway play that Brad Pitt owns the film rights to

Stevie Nicks once sang, “Thunder only happens when it’s raining.”Well, there’s a downpour of drama over at the Golden Theatre on Broadway.The playwright and producers of “Stereophonic,” this year’s Tony Award winner for Best Play, and its landlord, the Shubert Organization, are being sued by writers Steven Stiefel and Ken Caillat, the Fleetwood Mac sound engineer/producer, who claim the popular show ripped off their 2012 book, “Making Rumours: The Inside Story of the Classic Fleetwood Mac Album.”The pissed-off pair filed their lawsuit on Oct.1 in Manhattan federal court.

Why the Mac attack?Playwright David Adjmi’s “Stereophonic,” you see, is about a fictional 1970s rock band made up of three men and two women — three Brits, two Americans — angstily recording their second album in a Sausalito, Calif., studio, as told from the perspective of a young sound engineer.Nonfictional “Making Rumours,” meanwhile, is about Fleetwood Mac — Nicks, Mick Fleetwood, Lindsey Buckingham, John McVie and Christine McVie; three Brits, two Americans — angstily recording their second album, “Rumours,” in a Sausalito, Calif., studio, as told from the perspective of a young sound engineer.I just got a rush of déjà vu.Caillat, joined by a New Yorker reporter, attended a performance of “Stereophonic” in September and saw his reflection on the wood-covered stage.“Now I feel ripped off!” he exclaimed to the mag.The Post has reached out to reps of Adjmi for comment.The sound-engineer-turned-producer’s beef isn’t that the characters are obviously stand-ins for Fleetwood Mac members — despite Adjmi’s assertions to the contrary — but that the play’s format and scenes bear a striking resemblance to “Making Rumours.”The show “copies the heart and soul” of the book, the detailed complaint says.And it’s not a parody, either.

Adjmi can’t make a “fair use” argument, the lawsuit alleges, because he denies having used “Maki...