I'm just going to quote the official website for an explanation of the upcoming documentary Phyllis and Harold:
"Phyllis and Harold is an astoundingly frank journey through a disastrous 59-year marriage. Drawing on a lifetime of her family's home movies and interviews made over 12 years, filmmaker Cindy Kleine mixes reportage, cinema verité and animation to uncover family secrets and tell a story that could not be shown publicly as long as her father was still alive. Phyllis and Harold delves into the mystery of time passing, the nature of living a life, and the challenges of losing those we love. But it is also a loving, funny exposé on the sins of suburbia. Imagine Bergman’s Scenes From a Marriage seen through the prism of I Love Lucy."
The film has been making the rounds at smaller festivals but might gain a nice little theatrical run if big name directors like Ken Burns continue to praise it. Head on over the website to watch the trailer and learn more about the film.