The existing reviews for this are useful and I'd agree with pretty much everything that people are saying. As someone who finds Alistair MacLean books and films a guilty pleasure, the decision to film on location and work in a little-documented actual festival gives the film a certain atmospheric appeal. However the subsequent commitment to using this footage appeared to hamper the creative team's ability to tell a coherent story. The frequent use of cutaways and montage such as the bullfight with the killing of De Croyter's daughter, suggests that the availability of the documentary footage drove the film's structure and so effectively killed opportunities to create suspense with more carefully constructed shots. Perhaps more unfortunate is that the Director constructing the shots was the hapless Geoffrey Reeve who managed to increasingly mess up three MacLeans. In addition to Vaccares, he directed the flawed, though undoubtedly watchable, 'Puppet On A Chain', noting however that the memorable boat chase was shot by Don Sharp. Then after 'Vaccares' he helmed the appalling 'The Way to Dusty Death' which confirmed that he was totally out of his depth as a Director in the industry. Writer, Paul Wheeler should also carry some responsibility for the eventual cinematic carnage. Maybe Reeve's TV work was better but he and the writer really didn't haven't a clue how to build suspense and handle this sort of material and as a result, a decade of exciting Alistair MacLean branded entertainments started to lose credibility with audiences. Starting here.