► 成句一石  [いっせき]  [
一石を投じる]    
meaning:  objection  rank: 4☆ 
現在の
報道のあり
方に一石を
投じた
映画 ⇨ A movie that threw a stone, posed a strong objection, against today’s journalism
More examples:- 趣味で金が稼げれば一石二鳥だ ⇨ If you can earn money with your hobby, that is killing two birds with one stone