<P> In November 2012, Mark Wahlberg was cast in the film . Also in November 2012, The Hollywood Reporter reported that casting had begun for two additional leads: the daughter to Wahlberg's character and her boyfriend, a race car driver . Isabelle Cornish, Nicola Peltz, Gabriella Wilde, and Margaret Qualley were all considered for the role of the daughter, while Luke Grimes, Landon Liboiron, Brenton Thwaites, Jack Reynor, and Hunter Parrish were all considered for the boyfriend . The leads are contracted for three films . In January 2013, Reynor was cast as the boyfriend, and in March 2013, Nicola Peltz was cast as Wahlberg's daughter . </P> <P> Peter Cullen reprises his role as the voice of Optimus Prime . Glenn Morshower stated in September 2012 that he would appear in the next two films, reprising his role of General Morshower, but Morshower announced in May 2013 that he would not be able to appear in the new films due to a scheduling conflict . In April 2013, Bay revealed that actor Stanley Tucci had joined the cast . On May 1, 2013, actor Kelsey Grammer was cast as the lead human villain named Harold Attinger . On May 6, 2013, actress Sophia Myles was cast in a major role . That same month, Chinese actress Li Bingbing and comedian T.J. Miller joined the cast . On July 14, 2013, Bay announced that Han Geng had joined the cast . That same month, Titus Welliver also joined the cast . </P> <P> Bay announced that filming had begun on May 28, 2013, in Monument Valley, Utah . Detroit, Michigan, was used as a stand - in for Hong Kong while McCormick Place in Chicago, Illinois, was re-dressed to portray a city in China . The movie was the first feature film to be shot using smaller digital IMAX 3D cameras . It also was shot in various other formats, including IMAX 70mm film cameras, digital stereo 3D, and anamorphic and spherical 35mm film . From May 28 to June 24, 2013, Michael Bay uploaded photographs of several cars featured in the film, all apparently Autobots, to social networks including Facebook and Flickr . The film featured two unknown Autobots that transformed into a black and blue 2013 Bugatti Veyron Grand Sport Vitesse (going by production name "Drift"), and a green 2014 C7 Corvette Stingray concept (going by production name "Slingshot"). Also revealed was a truck from Western Star Trucks as Optimus Prime's new alternate mode . The Dinobots and Lockdown were confirmed to appear . On October 29, Michael Bay's Official Twitter Account tweeted that principal photography of Transformers 4 had been completed in Hong Kong, China and the cast and crew were heading to the Chinese mainland . (According to previous reports, they would be filming there for one week .) Additional filming in Detroit began in early 2014; a pair of steamships (Columbia and Ste . Clair) which had once traveled between Detroit and Bois Blanc Island's amusement park were partially restored and used as props for the film . </P> <P> On October 17, 2013, while filming in Hong Kong, Bay was assaulted by two brothers surnamed Mak, who demanded a payment of HK $100,000 (US $12,900). The elder brother also assaulted three police officers during the incident . Both brothers and a third man surnamed Chan were arrested on suspicion of assault, with the younger Mak also charged on suspicion of blackmail . The Mak brothers pleaded guilty to both charges in February 2014 and were incarcerated, with the prosecutor noting that the case had attracted a great deal of media attention and affected Hong Kong's image . </P>

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