Never mind the global recession – filmmaker Peter Jackson is believed to be taking to the skies with a new, $106 million jet. Aircraft industry insiders are abuzz with speculation about the Oscar winner’s upgrade to a Gulfstream G550 jet, one of two exclusive private jets sold to New Zealanders in the past 18 months. Jackson, whose net wealth is estimated at $450 million on the NBR Rich List, already owns a G-IV jet, but those in the know say he’s decided to upgrade. Jackson’s jet set upgrade