Game of Thrones, HBO’s biggest flagship series, is returning in a few months – and once it ends its cycle, another franchise, Westworld, will become the shiniest current jewel in HBO’s crown. So here’s a chance to look back at the original 1973 movie adaptation of Michael Crichton’s “amusement park gone crazy” fantasy novel. Richard Benjamin and James Brolin star, but the reason for the film’s iconic status – and the eventual reboot for television – is the robotically riveting performance by Yul Brynner as the clockwork gunslinger. A decade before the original Terminator movie way back in 1984, writer-director Crichton’s Westworld film  showed how to make an artificially created antagonist the most charismatic and crucial element of a fantasy drama.