Directed by British director Michael Apted, it is a similar take on his famed Up Series.
Beginning in 2001, interviews were intended to be conducted every five years to gauge the lives of the couples and to evaluate American married life as a whole.
Participants were asked about their feelings and perceptions of their marriage and married lives.
The collective interviews were intended to provided insight into the state of marriage and how it changed over time, but were limited to just a short five-year period by the series' cancelation after release of the second movie.
Participants were selected to highlight the different social, economic, and cultural factors that can affect marriage.