this is ethan hawke plays a -- a man of religion who goes through a crisis of faith.i had been thinking about not writing it for a long time. almost 40 or 50 years, i've been thinking about not writing it. and then finally i just got too old, and i decided i have to write it. >> seth: it is -- you know, it's interesting. because it's very much of this time in that, you know, we just had a state of the union where the president did not mention climate change, which many would argue is the biggest issue facing humanity. not just this country, but humanity. that is a theme in this film. is that -- did you do a lot of research, or is that something that was just in your head anyway? >> well, i mean, it's all out there on the internet. you don't have to spend many hours before you, you know, receive a very, very dire and bleak view of the planet's future. but what makes it sort of interesting is that this discussion that mankind has been having for 100,000 years. you know, where are we going? was always a theoretical one. and now it's starting to look like a practical one.