Stephen Armourae was a pupil at St Joseph's Convent. Having started the documentary, there are now 100 former pupils involved.
The founder of the convent and the school, Sister Marie-Claire Villette was just 16 in 1901.
The headmistress during the 1970s, Sister Theresa was feared for use of the cane, but was an excellent teacher who remembered her pupils decades later.
This is the same St Joseph's Convent, Sidcup that appears in movie acknowledgments.