High Spirits (1988) on Netflix

An Irish Castle, the main source of revenue and employment for the region, is about to be repossessed. The villagers and he owner attempt to turn it into a tourist hotel destination for foreign visitors by pretending it is haunted. Their early attempts are comedic failures. The American tourists turn out largely to have ulterior motives one related to the creditor about to repossess and another a researcher attempting to expose the haunting as a fraud. The owner's mum, who disapproves, soon summons the real ghosts of the castle to take revenge on the Americans. All Hallow's eve turns into a real horror movie but with a twist that both the ghosts and the tourists experience personal catharses which improve their individual situations.Everyone ends up better off by all Saints Day with two new couples even consisting of one two hundred year old ghost and one American tourist.