“I was born under unusual circumstances.” And so begins “The Curious Case of Benjamin Button,” adapted from the 1920s story by F. Scott Fitzgerald about a man who is born in his eighties and ages backwards: a man, like any of us, who is unable to stop time. We follow his story, set in New Orleans from the end of World War I in 1918, into the 21st century, following his journey that is as unusual as any man’s life can be.