And once Hollywood recovered its confidence, the studios regained their grip. The Movie Brats were brought into line, and the result was blockbuster cinema as we know it. The Exorcist arrived in 1973; Jaws two years later; Star Wars two years after that. Another fruitful period for the industry, except this time, the fruit was fatter, sweeter and stickier. Back to the Future (1985) is, for me, the pinnacle. Robert Zemeckis’s film is funny, nostalgic and optimistic, and worries over real, human relationships – compared to most blockbusters, the stakes are vanishingly low. It’s also as tensely edited as the best of Hitchcock.