 In February 1981, on the final day of filming the bobsleigh chase, one of the stuntmen driving a sleigh, 23-year-old Paolo Rigon, was killed when he became trapped under the bob.The incident, which took place a week after the FIBT World Championships 1981 where USA-1 bobsled driver James Morgan was killed in a crash during the four-man sled competition, resulted in the shortening of the track for future FIBT events.The pre-credits sequence used a church in Stoke Poges as a cemetery, while the helicopter scenes were filmed at the abandoned Beckton Gas Works in London.