Reese Witherspoon has been cast in the romantic comedy The Beard.

The actress will both star in the project and produce with Peter Chernin, according to The Hollywood Reporter.

The script has been written by Becca Greene, a staff writer on the MTV series of animated shorts Good Vibes.

Although story details have not been revealed, the 'beard' in the title refers to a member of the opposite sex, usually a woman, who acts as a date for a gay person to give the illusion that they aren't gay.

Witherspoon is currently shooting Devil's Knot, Atom Egoyan's take on the West Memphis Three murder case that also stars Colin Firth.