Doomsday Gun (TV M) Action, Drama, History, TV M, United Kingdom, United States Doomsday Gun (TV M) Duration: 2H Description: How the brilliant Canadian munitions engineer, Dr. Gerald Bull, agreed to build a super-gun for Saddam Hussein in 1988, when the U.S. cut his funding for the experiment, and how it attracted the attention of several intelligence a….. Trailer ↗ United Kingdom United States TV M Action Drama History