What is the fine-grained topic of the following text: The film does a powerful and moving job of communicating just what nuclear technology can do to children if it goes wrong, as it did in Chernobyl, whose explosion spewed radiation densely across Belarus and parts of Russia and Ukraine, with the plume spreading over Europe and eventually touching the U.S.
Genadijs Dolganovs delivers a moving performance as a stricken parent. Only return the topic.
Impact of nuclear technology disasters portrayed in a film