See the film here: https://vimeo.com/139580476 with subtitles in English.
This short film is a documentary about the destruction of a poor neighborhood in the periphery of Lisbon that had been built primarily by Cape Verdean immigrants who moved to Portugal and occupied the land in the 1960s. The same topic (a different neighborhood this time: Fontainhas) is treated in a film by Pedro Costa, Juventude em Marcha (Colossal Youth). This is available in the Language Learning Center in Watson Hall at NIU. Both the short film and the full-length film show you what “bairros de lata” are – we learn this term in FLPO 104.