The great “faith vs. reason” debate gets a comedic workout in this by turns goofy and heartfelt satire. Tommaso (Marco Giallini), a famed surgeon, is thrown for a loop when his son Andrea (Enrico Oetiker) informs him that he wants to ditch his medical studies and become a priest. A strict atheist who believes the boy is squandering his potential, Tommaso embarks on a harebrained campaign to discredit the charismatic, motorcycle-riding evangelist (Alessandro, son of Vittorio, Gassman) influencing Andrea—but finds his own values being transformed in the process. Far from preachy, God Willing gently lampoons bourgeois vapidity, while offering a fresh perspective on the role of spirituality in the modern world.