LONDON, England - The helicopter swoops down, its TV camera following the lines of a sunlit track, as the words 'San Marino GP, Imola' appear on-screen.Twenty years on from the fatal crashes of Formula 1 great Ayrton Senna and Austrian Roland Ratzenberger at the Italian circuit the moment in the award-winning documentary 'Senna' still makes the heart beat faster.VIDEO: 'Senna' film trailerWhat followed on that 1994 weekend, and particularly on May 1 when the Brazilian crashed his Williams, is as familiar to most F1 fans as the waving of a chequered flag.AN EXTRAORDINARY LIFEFor screenwriter and executive producer Manish Pandey, who will attend a showing of his 2010 film in Imola this week as part of events marking the 20th anniversary, the focus will be more on marking an extraordinary life than a tragic death.In an interview with Reuters, he recalled how director Asif Kapadia asked him early on what he wanted to achieve with the film. "I said 'My big ambition for the film is whether you know what happened to him or don't know what happened to him, you forget for a while'," Pandey said."And that's where I think the film is very successful. Even if you know, you get so caught up in it you kind of forget. And then when it suddenly says Imola everyone knows and it hits them very hard."Imola, Pandey said, was not a weekend he particularly wanted to remember and nor was it one to be taken out of context. "You can't tell people how great something is that's lost, whether it's humanity or talent or whatever you want to describe it as, until you show people what that was in the first place," he said."I think a less salubrious film maker may well have just gone for the death of Ayrton Senna. I'm really glad that we went for his life."FIRST HOME VICTORYThe producer said that, for him, the most emotional moment of the film was not Imola but Senna's victory at his home GP at Interlagos in 1991 - the champion's first win in Brazil.Senna, who had to be lifted out of his McLaren after taking the chequered flag with only sixth gear still functioning, declared afterwards: "God gave me this race."Pandey went on: "You see a man at the very top of his game, you see the drama of what it is to be a motor racing driver... there the context of Imola is properly defined."You can see what he did, what he went through to win that race and what the stakes were and what the context was. He couldn't come second in that race. Not this year. He had to win it and it didn't matter what was taken out of him."Pandey, an orthopaedic surgeon who established an immediate rapport with the late F1 medical delegate Sid Watkins, saw Senna race only three times and never met him - but he was hooked, nonetheless. "I was brought up a Hindu and those values are very important to me. For me the whole film is a metaphor about a man's struggle to find God. But not to find God in another universe but on this earth... it's a spiritual struggle."Watkins said Senna had an inner peace. Because he could take the cigarette companies, the oil companies, the fumes, the smoke, the girls, all of that noise and just transform it into this thing that was so sublime. This man right on the very edge, just doing something better than anyone else had ever done - and doing it day after day, keeping that edge."That, for me, is what the film was about."A meeting with F1 supremo Bernie Ecclestone opened the doors to an amazing archive and provided introductions to others. Even then, it took years and more meetings before the Senna family was sure enough to give their blessing.Pandey again: "I like to think of that film as exquisite. I think that's a really good way to describe it. It really was made a frame at a time, like maquetery. It's like seeing a lovely old marble screen carved in a Mughal palace. For me it was really hand-crafted."People told me 'never make a film about one of your heroes because you will always be disappointed'... I just came away admiring him 10 times more."A FEW REGRETS...There were regrets along the way, footage and characters who had to be left out, and controversy after Senna's old rival Alain Prost - who had made peace with the Brazilian shortly before Imola - chafed at the way he was portrayed.There was also unintended poignancy, which became apparent only after the film was shown to a Brazilian audience. A comedy moment comes when Senna appears in 1988 as a guest on a childrens' Christmas show hosted by Xuxa Meneghel who kisses him repeatedly for luck, one kiss for each year ahead."The number of times we saw the Xuxa show and we laughed our heads off. Especially when he dances. The World champion on stage in a children's show and he's dancing. She's laughing, they are holding hands and he's whispered what he'd like to do," said Pandey.They had not noticed something else that Xuxa saw immediately and was distraught: "I should have kissed him for 94. I stopped at 93'," she told a TV interviewer.Stay with Wheels24 for the 2014 F1 season – fresh reports every day.