Get a glimpse of what that means from the official trailer — watch it now above. Along with McGregor, Last Days In The Desert stars Tye Sheridan, Ciarán Hinds and Ayelet Zurer.

“What would Jesus do?” asks the t-shirt and the bumper sticker and the WWJD bracelet. The proper response, of course, depends on whom you’re asking. But here the answer is, “More.” ...

In "Last Days in the Desert," that actor is Ewan McGregor, who stars both as Jesus — wandering the desert for 40 days — and The Demon, Yeshua's devilish mirror.