 Originaly, the scene where Han rescues Luke on Hoth was to have been  filmed at Elstree studios, and only Mark Hamill (I) (qv) was  needed on location in Norway. But when a glacier made it impossible  to film anywhere but near the hotel, Harrison Ford (I) (qv) was  summoned to Finse, anyway. Unable to travel by train, he arrived in  the engine compartment of a snow clearance vehicle.