'Transformers 3' Nabs John Malkovich, Frances McDormand, Ken Jeong

Director Michael Bay announces casting additions on his Web site.

Although story details for "Transformers 3" are under wraps, director Michael Bay has made no secret about some of the actors slated to join the third entry in the action-movie franchise. According to the filmmaker, Frances McDormand, John Malkovich and Ken Jeong are the latest actors embarking on the battle between the Autobots and the Decepticons in the upcoming "Transformers" installment.

"Both [McDormand and Malkovich are] amazing actors I've always wanted to work with," Bay wrote of the latest casting additions on his Web site, going on to describe Jeong as a "super funny actor."

Jeong's part is unknown, but Deadline New York reports that McDormand will play "a big role" as a national intelligence director. Malkovich, meanwhile, has signed on to star as the boss of Sam Witwicky, Shia LaBeouf's character in the franchise. Megan Fox reprises her role as Mikaela Banes.

In addition to the casting announcements, Bay revealed that pre-shoots on "Transformers 3" will begin in approximately a month, with the movie set to film in a wide variety of locations including Los Angeles, Chicago, Africa, Russia and China. As for what causes such a globetrotting adventure, there's no word on what the "Transformers" sequel has in store for the fans.

Josh Duhamel, who reprises his role as Major Lennox in the third film, was pleasantly surprised by the recently finished screenplay. "Some really cool stuff happens," he told MTV News. "They put a lot of time and thought into this. What I think is really cool is they went back into the history of 'Transformers.' They didn't really make anything up. They're using stuff that actually existed in the story from before."

Check out everything we've got on "Transformers 3."

For breaking news, celebrity columns, humor and more — updated around the clock — visit MTVMoviesBlog.com.