Derek Armstrong’s 1975 Shell Film Unit instructional series on aerodynamics, explaining the relationship between lift and weight as the foundational forces that keep an aircraft flying. (Note: This is an update of the 1947 film series of the same name.)
Neelapponmaan is a 1975 Indian Malayalam film, directed and produced by Kunchacko. The film stars Prem Nazir, KPAC Lalitha, Adoor Bhasi and Sreelatha Namboothiri in lead roles.
A married couple, after a life time of work and bringing up a family, retire and awaken to the fast changing world around them, the habitual nature of their relationship, and what they have left.