Cinema’s power often lies in a very direct form of emotiveness, with the immediacy of the image being the perfect foil for a good story. But the simplicity with which this directness operates requires a fine balance. It’s all too easy to mishandle the power at one’s disposal, to bludgeon an audience’s goodwill into pained submission under a hail of grandstanding sentiment. This is especially true in the ‘Life Story’ genre. Documentaries and acted biopics which bear this scary moniker often come generously ladled with words and phrases like ‘inspiring’ and ‘heart-warming’ as directors amp up every aspect of tragedy and triumph in human life, screaming ‘FEEL!’ at the audience as though we were already cold in our seats, vacant and resigned at this still-early stage in the emotional evolution of the human beast. In most cases, ‘vomit-inducing’ would be more of an accurate description of these films.

Great credit, then, to Jesse Vile, director of Jason Becker: Not Dead Yet who has made a film which impacts in a meaningful way whilst keeping any potential melodrama or sensationalism firmly outside of the frame. Jason Becker isn’t manipulative, it isn’t preachy, and most importantly it isn’t patronising. Jason Becker isn’t dead yet, and he doesn’t want your sympathy.

In 1989, small-town teenager Becker, a ridiculously talented guitarist, was about to make the step up from barely-known prodigy to big time player. David Lee Roth, whose band had launched the careers of first Eddie Van Halen and then Steve Vai – the established Best Guitarists in the World in the ‘shredder’ mould – had heard Becker playing and wanted him to feature on a new album and a tour. This was literally ‘it’ – and nothing more than a culmination of years of obsessive practice combined with a natural talent in a nurturing family environment, although these are the kind of dreams we hardly dare hope for even in our wildest moments. The album was recorded and the band were hitting the studio in preparation for the next stage. Around this time what had begun as a twinge in Jason’s leg was causing him serious discomfort. On the advice of his parents he went to the doctor, who diagnosed him with ALS – a wasting disease – an extremely rare condition for someone of his age, and totally incurable.

As a reviewer you try to be as neutral as possible during screenings, but sometimes you get caught up, and from there it’s almost impossible to imagine blankly critiquing things like form and narrative. In this sense the film must, therefore, be a success – removing this reviewer from the relative ease and safety of his objectiveness. So far as this is a piece of cinema, it has some cute directorial touches, but Vile is both wise and modest enough to keep his presence to a minimum. If there’s a message, it’s one that comes naturally from the material, not from some superficial slants, artificial crescendos of emotion or sensationalism. Becker’s story changed, it deviated from what might have been expected – and many times – but it’s clear from the film that all changes are navigable with good people behind you.

Having made a point of the film’s emotional neutrality, I haven’t tried so hard not to cry in a film since watching Bambi as a child, unsure as I was at the time whether it was allowed in the cinema or not. As with then, the effort gave me a massive headache. But it wasn’t that what I was watching made me sad. The film’s emotional impact sits in that quiet hinterland between sadness and joy – the one where you’re experiencing the sense of being. It’s neither a happy experience nor an unhappy one, but it’s more than both – an experience of fullness and potential. A man who created his opus while paralysed? A great achievement – but here’s the thing – it’s also not. It’s entirely normal when viewed in the context of Becker’s life. What this film highlights –the incredible thing – is that all of life is within anyone’s grasp if they just have the confidence to take it in hand – to commit to it. Life can’t be this simple, so we think. And truly, you don’t know what myriad complexities have been simplified, what disparate threads have been unified for the purposes of effective cinema. But what this film suggests is that there aren’t any, and if there are they’re unimportant. While it’s common practice now to view life ‘realistically’ as a series of inherently meaningless events swinging, by our selfish imposition of our worth upon them, between the twin states of ‘positive’ and ‘negative’, one can also approach it from a far simpler outlook: we’re alive right now, and that’s what really matters. Is there not incredible hope in that?

Please don’t be put off if you think this is just going to be a film about a metal guitarist. This is a universal film, an important film, meriting a wider audience than it will probably receive. In his steadfast refusal to patronise his subject, Vile has made the film his subject richly deserves.

Jason Becker: Not Dead Yet is in cinemas from Friday, and released by Dogwoof. It’s released on DVD on December 3.