Nick Vivarelli International CorrespondentThe Locarno Film Festival has appointed Nadia Dresti as interim artistic director following the recent resignation of Lili Hinstin.Dresti, who has been with the prominent Swiss fest dedicated to indie cinema intermittently for roughly 30 years, is taking the reins after the abrupt departure of Hinstin late last month after two years due to differences with the event’s top management.Dresti started out in the fest’s press office, and in 2000 was