There is an interesting documentary film, "City 40" (2016), about the people who live in Ozersk, the town near the location of the Kyshtym disaster. The documentary features archival and hidden camera footage (because the area is heavily guarded and mostly closed to foreign journalists), as well as interviews with a number of local residents, including Nadezhda Kutepova.

https://en.wikipedia.org/wiki/City_40_(film)