LOS ANGELES, CA - NOVEMBER 22: Singer Whitney Houston accepts the Winner of International - Favorite Artist Award onstage at
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The angelic voice, meteoric success and public unraveling of one of pop music's most compelling voices, Whitney Houston, will be the subject of a new documentary from Academy Award-winning director Kevin MacDonald. 

The "unvarnished and authentic" film is being promoted by Altitude Film—the same production company behind the critically acclaimed Amy Winehouse doc, Amy—and will be introduced to buyers at Cannes this year, reports The Hollywood Reporter

In a statement, MacDonald—who won an Oscar for One Day in September in 2000 and also directed the 2012 Bob Marley doc, Marley—reinforced Houston's musical significance and broad cultural appeal: 

“The story that is never told about Whitney is just how brilliant she was as an artist; by many measures she had the greatest voice of the last 50 years...She changed the way pop music was sung - bringing it back full circle to its blues and gospel roots. She was also completely unique in being a black pop star who sold in countries where black artists don’t traditionally sell."

Houston's career was also marred by a chaotic 15-year marriage with Bobby Brown and battles with substance abuse. While much of that struggle became a pop-culture and tabloid sticking point in the '90s, MacDonald said he wants to tell the singer's untold story: "I want to reveal a woman that even her most die-hard fans never knew; and a woman those new to her life and music will never forget.”

Houston passed away in 2012 at the age of 48. She enjoyed seven No. 1 Billboard Hot 100 hits throughout her career, and was survived by one daughter, Bobby Kristina Brown, who passed away last year. MacDonald's documentary is tentatively titled The Voice.