LONDONA backyard barbecue hosted by director Terry Gilliam was postponed again Sunday due to production delays. "I had a special grill flown in from Fiji, but it took three weeks to figure out how to light it," Gilliam said of the 20-foot, volcano-shaped propane grill he'd deemed integral to the Tiki-themed event. "Then, just when I had the menu hammered out, Johnny [Depp] got sick, and I had to push the date back again. See, the whole thing was for his birthday in June." In spite of the continued delays, party guest Elvis Mitchell predicted that the event will be "visually stunning" and "fun."