Were there any sightings of UFOs in Victorian times - and what was the first film to feature a flying saucer? This week, Answers to Correspondents boldly goes into the world of little green men from beyond the stars, answering questions from Daily Mail readers on UFO sightings and aliens with UFO author Nigel Watson and Charles Legge, editor of the Mail's long-running Answers to Correspondents column. 

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