In 1964, Canadian director Paul Almond filmed a group of 14 British schoolchildren aged seven years-old for a documentary called “Seven Up! ” examining the lives of kids across class divides. Seven years later, the children were filmed again, this time by British director Michael Apted, for “14 Up.
Source: [Variety](https://variety.com/2026/tv/global/70-up-definitive-longitudinal-documentary-1236854131/)