Transformers: The Last Knight is a 2017 American science fiction action film based on the Transformers toy line. It is the fifth installment of the live-action Transformers film series and a sequel to 2014's Age of Extinction. Like its predecessors, the film is directed by Michael Bay, and features Mark Wahlberg reprising his role from Age of Extinction, while Josh Duhamel, John Turturro, and Glenn Morshower reprise their roles from the first three films, as well as Laura Haddock, Isabela Moner, Jerrod Carmichael, Santiago Cabrera, and Anthony Hopkins all joining the cast. Returning Transformers include Optimus Prime, Bumblebee, Hound, Drift, Crosshairs, Wheelie, Megatron (formerly known as Galvatron), and Barricade.
The film premiered at Odeon Leicester Square in London on June 18, 2017, and was theatrically released in the United States on June 21, 2017, by Paramount Pictures in 2D, 3D and IMAX 3D. The film was universally panned by critics and, with an approval rating of 15% on Rotten Tomatoes, it is the worst-reviewed film of the Transformers series. At the 38th Golden Raspberry Awards, it was nominated for ten awards, including Worst Picture, Worst Director and Worst Actor for Wahlberg, but did not win any. The film grossed $605 million worldwide against a budget of $217 million and it was considered a box office bomb, reportedly losing over $100 million for both Paramount and Hasbro.
A spin-off and reboot of the franchise, Bumblebee, was released December 21, 2018.