Emerging from a transatlantic upbringing-born in Ottawa and raised in Britain as the son of film theorist Raymond Spottiswoode-he entered the UK film world in the 1960s as a trainee editor under John Bloom, later cutting several Sam Peckinpah pictures in the early 1970s. Encouraged by Walter Hill to write before directing, he co-authored the screenplay for 48 Hours and worked on the unrealised The…