Warner Bros. has picked up T.S. Nowlin's western spec script Wild Guns.  Heat Vision reports that the script has "shades of Tombstone and Sherlock Holmes" and centers on legendary gunslingers Wyatt Earp and Doc Holliday.  The duo teams up after the Civil War to rescue the daughter of Sitting Bull from a powerful Shaman.  I suppose an alternate title could have been American History, I Hate You.  I don't think a Western needs to be 100% historically accurate, but I was unaware that there was a Shaman problem in the old West.  I was also unaware that Sitting Bull, whose claim to fame is resisting the American government, needed the help of two American gunslingers.Hit the jump for more details on the project as well as other Earp movies in the works.Warner Bros. exec Matt Cherniss will oversee the project for the studio while Hollywood Gang's John Ridley will be involved in a producing capacity.  Nowlin recently sold his spec script about Christopher Columbus to billionaire Richard Branson with McG attached to direct.  Heat Vision reports that Nowlin also has a Marco Polo project set up at Endgame.Wild Guns is the latest Wyatt Earp project to head into development.  Last month, Val Kilmer signed on to star in the indie The First Ride of Wyatt Earp while last summer Sam Raimi was attached to direct the futuristic western Earp: Saints for Sinners.  While I'm happy about Hollywood's willingness to make more westerns, it currently sounds like Wild Guns is a poor man's Shanghai Noon.