This is the 11951st most frequent Russian word.
затрагивающей
"Touching upon" or "affecting."
The word "затрагивающая" is used as a present participle, describing the article's action of addressing the ecological problems.
Статья, затрагивающая проблемы экологии, вызвала оживлённые дискуссии.
The article, touching on ecological issues, caused lively discussions.
Here, "затрагивающий" is a present active participle describing the law draft that concerns the interests of small businesses.
Проект закона, затрагивающий интересы малого бизнеса, требует тщательного изучения.
The draft law, affecting the interests of small businesses, requires thorough examination.
In this sentence, "затрагивающий" serves as a participle that defines the film as one that discusses social topics.