"I want them to change the film" argued Mitch Winehouse regarding the release of the new documentary focusing on his daughter Amy. Labelling it as "preposterous" and "untrue", Mitch is now in plans to make his very own film. However, despite the controversy, or perhaps, thanks to the controversy, Amy has had the highest grossing opening weekend for a British documentary ever.

It's a story which unfortunately we're all too familiar with, but there's something about this film that is still managing to draw in huge audiences. This is mostly down to morbid curiosity, as everyone heading to the cinema knows exactly how Winehouse died and the trauma she went through in the lead-up to it. But the one big surprise that this film does deliver is just how good it really is. It's heartbreakingly sad and at times so bleak you want to just look away, but it's so well told that you're gripped until the very end.

What really lifts this film from a standard music documentary is the huge amount of home footage that's included. There are interviews with childhood friends, footage of Winehouse on the road for her very first tour, and holiday videos from her late-teenage years. Another nice touch is the lack of a narrator, with the director instead turning solely to Winehouse's lyrics to guide us through her life. This is where she shines above and beyond any of the drama that may have been playing out in the tabloids at the time. It's her beautiful and unique voice that manages to lift her, if only momentarily, from the haze of battling with drink, drugs, bulimia, and the paparazzi. Winehouse is also incredibly funny, her dry wit and sarcasm dominating many of her early-years interviews.

As with any documentary about such an iconic person, you do have to take some content with a pinch of salt and look at the wider picture. Her father Mitch comes across as naïve and almost heartless at times, in particular when he decides to take a camera crew with him as he visits his fragile daughter in St. Lucia. But taking a step back from the footage you're being shown, it looks more like a desperate attempt to make her notice that he's incredibly worried about her, rather than trying to cash-in on her pain. Winehouse's ex-husband Blake Fielder-Civil is landed with the brunt of the blame in this film, by friends, family, and doctors. When it transpires that he gave Winehouse crack cocaine and heroin for the first time, just days after marrying her, you find the film's true 'baddie'. And while he did introduce her to the harder drugs and most likely enjoy the fact that she could keep him in the lifestyle he'd grown accustomed to, he too was suffering from his own personal, debilitating addiction.

The film is full of so many moments where poor decisions are made by family, friends and management that part of you wonders how many more years Winehouse could have lived if she'd been forced into getting help earlier. And that's what stays with you long after you've seen the film. Could anyone really have helped her out of this? Should she have been forced into touring when she was battling alcoholism and drug addiction? Amy leaves you with so many gut-wrenching questions and offers no closure. But what it does offer is a rare and unique insight into an icon's mind and music, told in her very own words.