Moviemaker Martin Scorsese had to cover up one curse word with a drum beat - to make sure his new THE Rolling Stones rockumentary received a PG-13 rating at the cinema.
The Oscar winner knew he'd have to limit swearing to just two 'f' words or risk a harsher rating when the film was released in cinemas.
The band agreed to cut back on foul language, but when guest star Buddy Guy was introduced onstage as "Buddy motherf**king Guy" during a filmed show at the Beacon Theatre in New York, Scorsese knew the rockers had gone too far.
He tells Rolling Stone magazine, "We tried to plead the case (with censors) that it's part of what he's (Guy) called. We didn't win that one, so we put a drumbeat in there."