Director Michael Bay announced during CinemaCon in Las Vegas that Stanley Tucci is on board for "Transformers 4." He also promised that he would soon reveal the name of a new actor joining the cast.

The part planned for Stanley Tucci ("Hunger Games") is still a secret, just like the plot of this fourth installment. "Transformers 4" (an official title has yet to be revealed) will fall somewhere between a sequel and a reboot. It will kick off a new trilogy in keeping with the plan established by Michael Bay and Paramount Pictures. This fourth movie should be darker than the previous three starring Shia LaBeouf.

Mark Wahlberg, Jack Reynor and Nicola Peltz will also feature in this movie, which is set to begin rolling out internationally in late June 2014.

Michael Bay is expected to start filming in early May in Detroit and China.