Cluedo was retitled because the traditional British board game "Ludo", on which the name is based, was less well known there than its American variant "Parcheesi." The North American versions of "Clue" also replace the character "Reverend Green" from the original "Cluedo" with "Mr. Green." This is the only region to continue to make such a change. Minor changes include "Miss Scarlett" with her name being spelt with one 't', the spanner being called a wrench, and the dagger renamed a knife. In the 2016 U.S. edition, the knife was changed to a dagger. And until 2003, the lead piping was
The Two-Character Play of one version of this play, which premiered at the Ivanhoe Theatre in Chicago in July 1971. "Out Cry" later premiered on Broadway, directed by Peter Glenville and co-starring Michael York and Cara Duff-MacCormick, and which ran from March 1–10, 1973 at the Lyceum Theater after one preview on February 28.) The plot is confusing and difficult to follow, with little sense of a resolution. "The Two-Character Play" has a concurrent double plot with the convention of a play within a play scenario. The characters of Clare and Felice are psychologically damaged from witnessing the traumatic murder/suicide of their parents.