In Netflix’s first official visit to the Cannes Film Festival, the streaming service’s ambitions have been met warily at the Cote d’Azure cinema capital, a 68-year-old movie palace reverential to the theater-going experience. Ted Sarandos, chief content officer of Netflix, appeared Friday as part of Cannes’ NEXT conference to tout Netflix’s global strategy and its desire to upend the traditional window release schedules of movies.