Documentary filmmaker Sam Green is obsessed with supercentenarians (people who reach 110 years old). Green spent the last 10 years tracking down and interviewing nearly every person who held the title of oldest person in the world. What did he learn? More about himself and the meaning of life — plus a few tips along the way. “The Oldest Person in the World” opens at the Angelika Film Center on Sept. 10. #movies #nyc #documentary