Whitney Houston's voice guaranteed her stardom. What she was unprepared for was the cost of fame. Nick Broomfield's ('Kurt and Courtney', 'Biggie and Tupac') documentary is a tribute to Houston's talent and an ultimately sad tale of the singer's rise to the top and inexorable descent from it. Featuring interviews with family and friends, it's a moving, emotionally resonant portrait. ★★★★ "A cautionary tale told with probing analysis of gender, class, and race" - Geoffrey Macnab, The Independent ★★★★ "An engrossing and compassionate portrait of a supremely talented singer racked by self doubt" - Peter Bradshaw's Film of the Week, The Guardian