Maggie Smith will reprise her stage role in a feature film version of "The Lady In The Van" for TriStar Productions and BBC Films.
Nicholas Hytner will direct the story from Alan Bennett's adaptation of his play about an eccentric woman who parked her van in Bennett's driveway and stayed there for 15 years.
Alex Jennings will play both Bennett and his alter ego, AB. Shooting is scheduled to begin in October in London for release late 2015.
Hytner, Damian Jones and Kevin Loader will produce.