Red Alert (1977)

 

A computer at a nuclear power plant malfunctions and receives erroneous information of a radiation leak. It seals off the compound, trapping the crew inside.

From memory: Above-average TV disaster film works within the confinements of the genre and is fairly suspenseful, but it's remarkable for its warning of a nuclear meltdown nearly a decade before the Chernobyl disaster. 

 

Rolling Thunder (1977)

A returning war veteran loses his family to a violent home invasion and decides to seek and retaliate against those responsible.

La mortadella (1971)

A couple fall in love in Italy in the 1960s, while working at a meat factory in Emilia stormed by the
workers' protest.