White House Down star Joey King has been cast to play a young woman who helps to bring polygamist Mormon leader Warren Jeffs to justice in a Tv film.

The 14 year old will star in Outlaw Prophet as Elissa Wall, who was forced by Jeffs, the Texas leader of the Fundamentalist Church of Jesus Christ of Latter-Day Saints, to marry her 19-year-old cousin when she was 14.

In 2006, Wall pressed charges against Jeffs and he was subsequently sentenced to serve 10 years to life in prison in Utah for two counts of being an accomplice to rape.

However, he was released by the Utah Supreme Court in 2010 because of incorrect jury instructions, only to be sentenced to life in prison in Texas for two felony counts of child sexual assault in 2011.

Scandal's Tony Goldwyn will play Jeffs.