Transformers: Age of Extinction is a 2014 American 3D science fiction action film based on the Transformers franchise. It is the fourth installment of the live-action Transformers film series and a stand-alone sequel to 2011's Transformers: Dark of the Moon, taking place five years after its events. Like its predecessors, it was directed by Michael Bay and written by Ehren Kruger, with Steven Spielberg and Bay as executive producers. It stars Mark Wahlberg, with Peter Cullen reprising his role as the voice of Optimus Prime, as the lead roles. It is the first film in the series to not feature the original human characters from the first three films, but features a new cast of human characters and many new Transformers, including the Dinobots. Returning Transformers include Optimus Prime, Bumblebee, Ratchet, Leadfoot, Brains and Megatron (now known as Galvatron). The film was released on June 27, 2014, in IMAX and 3D.
Transformers: Age of Extinction was panned by critics, many of whom considered it overlong, poorly acted, and badly written. According to Rotten Tomatoes, it is the worst reviewed film in the series. It also received seven nominations at the 35th Golden Raspberry Awards, including Worst Picture and Worst Prequel, Remake, Rip-off or Sequel, with Bay and Kelsey Grammer winning the awards for Worst Director and Worst Supporting Actor respectively. However, many praised the visual effects, the action sequences, Steve Jablonsky's musical score, and the performances of Wahlberg, Grammer and Tucci. Despite the poor reviews, the film was a major box office success. 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.
A fifth film, Transformers: The Last Knight, is set to be released on June 23, 2017, with Cullen and Wahlberg returning and Bay directing again. A sixth film, serving as a Bumblebee spin-off, is scheduled for a 2018 release and a seventh film, Transformers 6, is scheduled for a 2019 release and will serve as the sixth main entry in the series.