Cornerstone has struck several deals on Australian-made horror thriller “Sting,” about a huge and insatiable spider, which wrapped production this week. The film was licensed to Lucky Red (Italy), Diamond Films (Latin America, Spain, Portugal), Nordisk (Scandinavia), Kinoswiat (Poland), Pasatiempo Pictures (Baltics, CIS), Karantanija (Ex-Yogoslavia), Italia (Middle East), Filmfinity (South…