Transformers: Age of Extinction was a box office flop.
Transformers: Age of Extinction . According to Rotten Tomatoes , it is the worst reviewed film in the series , holding an 18 % approval rating . The film grossed over $ 1.104 billion worldwide , making it the highest-grossing film of 2014 , the second highest-grossing film in the Transformers series , the 19th film to gross over $ 1 billion , and the 16th highest-grossing film of all time . It was the only film to gross over $ 1 billion in 2014 .