The Wrecker is a British play, written in 1924 by Arnold Ridley and Bernard Merivale, and filmed in 1928-29. Much later Ridley played Private Godfrey in Dad's Army. The play is about an old engine driver who thinks his engine is malevolent and self-aware. The finale is a huge train wreck using elaborate stage special-effects as per The Ghost Train, an earlier and more famous play by Ridley. The play ran for 165 performances at St Martin's Theatre.