Avis Metacritic

At times, “Diane Warren: Relentless” falters in embodying the transgressive nature of the artist at its center. But upon further reflection, this is the type of lean, no-nonsense documentary that could be made about an artist like her; it’s disarmingly straightforward and bursting with a candor befitting of someone toiling away in a merciless industry purely for the love of the game.

Each one of these performers uses the same adjective to describe the songwriter: “relentless.” Many more interviewees will testify that Warren earned the bracelet she wears — the one that says “relentless as [BLEEP].”

Even if you don’t care for Warren’s tunes, this movie is likely to make you a fan.

Blunt, brassy and chatty, she makes for a refreshingly open host of her own life story.