Joel Edgerton has signed on to star opposite Jennifer Garner in director Peter Hedges' fable fantasy The Odd Life of Timothy Green, reports Heat Vision.

Based on a story by Ahmet Zappa with a script written by Peter Hedges, the story centers on a childless couple, unable to conceive, who bury all their wishes for a baby in a box in their backyard. One day, they wake up to find that a child is born, but the child is not all that it appears.

Mark Wahlberg and Joaquin Phoenix were both rumored for the role.

Production is set to begin in the new year with a budget of around $40 million.