After two 'Airplane! ' spoofs, it's hard to take any of the four 'Airport' films seriously. This third entry has a novel idea at its core - a plane surviving a crash with an oil rig and having to be rescued from the sea bed before it is crushed by water pressure - but its passenger list is the usual motley crew of deadbeats, oddballs and adulterers. The crash and subsequent rescue bid are well handled, but the tension would have been all the greater had the script made you care about any of the victims. Christopher Lee does the honourable thing in the mould of Oates of the Antarctic and takes an early bath. The rest of the cast look as though they wish they'd done the same. Co-starring Olivia de Havilland, who in real-life is a distant relative of Geoffrey de Havilland, the maker of the world's first jet airliner, the Comet.