 Producer Euan Lloyd lived near the Iranian Embassy in 1980. On 30  April, six terrorists took over the embassy holding several  hostages. When he was at home watching a John Wayne film on the  evening of 5 May, it suddenly switched to the live news coverage of  the SAS storming the building to end the siege. Lloyd immediately  ran outside round the corner to watch the action himself. As soon as  it had ended, he ran back to his house and immediately phoned his  lawyer to register several movie titles for a possible film on the  SAS, one of which was "Who Dares Wins".