Ralph Winter Productions and Walden Media has picked up the rights to the C.S. Lewis novel, The Screwtape Letters.

The film embodies Christian themes, just like another Lewis novel, The Chronicles of Narnia: The Lion, The Witch and The Wardrobe, First published in 1942, The Screwtape Letters takes the form of a series of missives from a senior demon, Screwtape, to his wannabe diabolical nephew, Wormwood. Variety adds as a mentor, Screwtape advises his protege on the finer points of undermining faith and promoting sin; his instructions are interspersed with observations on human nature and Christian doctrine.

No production schedule has been set for The Screwtape Letters.