P311 4-Tel 311 Sat 10 Dec C4 22:21:00         Dead Men's Tales PREVIEW Tonight, 20.00-21.00 Another chance to see this compelling series, offering writers and film- makers the opportunity to witness unusual and often dangerous journeys. In tonight's third programme, scx\ diving cameraman Leo Dickinson tells the tales of parachutists who have faced death and lived to jump again. His film combines reconstruction with stunning aerial stunt work. Teletext subtitles on 888