Paul Dano thinks writing is the “hardest part” of making a movie. The 39-year-old actor is known for his roles in ‘Little Miss Sunshine’ and ’12 Years a Slave’ but co-wrote and directed the 2018 film ‘Wildlife’ and is hoping to step behind the camera once again at some point next year. He told RogerEbert.com: ” I think writing is the hardest part. It takes me a while. And with acting—that’s what I’ve been doing—so it involves taking a break from that, which is what I’m doing now because my wife [Zoe Kazan] is in a play six days a week, and I’m at home with the two kids and writing. “My dream i…