The island interiors were likely done not far from Japan, North London, UK to be precise. I was more interested in the metro scenes, done in the disused part of Charing cross metro station, London (Same as the film 'Creep'). All the metro stuff was shot there, including one bit where they get into the actual vent shaft. The large underground area where the tube train comes through is the enormous 007 stage at Pinewood studios. Sadly it doesn't exist in reality