Before Derek Cianfrance decided he wanted to direct what would become Roofman , he asked if he could speak to the movie's subject, the robber Jeffrey Manchester.

"I couldn't call him because Jeff is in a max security prison, so I got him my number and somehow he called me. I picked up and he called me back and I picked up and over the course of the next four years, I would get three to four phone calls from him a week," Cianfrance says.

Eventually, Manchester started to address Cianfrance, best known for dark films like Blue Valentine and The Place Beyond the Pines , as "Dr. Derek."

Why the moniker? "He said I was shrinking his head," Cianfrance says.

Manchester's wild story is documented in Roofman , which just premiered at the Toronto International Film Festival and will re

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