Film adaption of Christian bestseller gets debut trailer
ALL CROPS: The Shack (screen grab)

The first trailer for The Shack is here.

The film adaptation of the Christian literary sensation tells the story of Mack Phillips (Avatar star Sam Worthington), who spirals into a deep depression causing him to question his innermost beliefs after a family tragedy. Phillips then receives a mysterious letter urging him to an abandoned shack in the Oregon wilderness where he goes on an otherworldly spiritual journey.

The Shack also stars Octavia Spencer (The Help) as God, along with Grammy winner Tim McGraw. The book has sold 20 million copies since its release in 2007; the film descends into theaters in March.