MAD MEL RETURNS

Mel Gibson was spotted down under hanging out with fellow Aussie VIPs at the QT Sydney hotel. Gibson, who was in Oz for the Tropfest short film festival, popped into the hotel’s Gilt Lounge, where he and “The Mentalist” star Simon

Baker were seen “kicking back and relaxing” at a festival after-party. The controversial 60-year-old filmmaker is in Australia directing a war film called “Hacksaw Ridge.”