Madchen Amick (Californication) has boarded the cast of the post-apocalyptic thriller Priest, according to Variety.

The film follows a priest, played by Paul Bettany, as he sets on a journey to track down his kidnapped niece.

Amick will play Shannon, the mother of the kidnapped niece.

The film's director Scott Stewart also updated his Twitter page with more casting updates. Christopher Plummer and Brad Dourif have been cast in the film as well. It wasn't clear who both actors would be playing at this time.

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The film is slated for an August 13, 2010 release date.