Four new movie stars - "Bumblebee," "Autobot Jazz," "Autobot Ratchet" and "Ironhide" - from DreamWorks Pictures and Paramount Pictures', in association with Hasbro's, forthcoming July 4th action-adventure release, Transformers, were introduced on Tuesday by General Motors Corp. as it hosted its sixth annual "ten" pre-Oscar fashion event at Paramount Pictures in Hollywood.

"Bumblebee" changes from the classic Chevrolet Camaro, and is a central character in the saga of aliens who take mechanical forms when on Earth "Autobot Jazz" converts from a Pontiac Solstice in a hardtop format. A Hummer H2, modified as a rescue vehicle, changes into "Autobot Ratchet" and "Ironhide" changes from a GMC TopKick medium-duty truck. They all star in this summer's live-action blockbuster, Transformers, from DreamWorks Pictures and Paramount Pictures, in association with Hasbro, which will premiere July 4.

Buzz about the roles that these vehicles play in the movie has been spreading since a quick glimpse of the new Camaro was spotted in Paramount's newest Transformers trailer, which began appearing in theaters on Dec. 20, 2006. This clip, which is currently the most-viewed movie trailer on Yahoo!, also contains images of the Solstice, H2 and TopKick for fans who were quick enough to have freeze-framed it.

Related: Bumblebee Comes to 4K, Blu-ray & DVD This April Loaded with Extras

"Transformers is a compelling project and offers us a global platform for marketing GM products and building our brands," said Mike Jackson, GM North America vice president, marketing and advertising. "It represents the perfect intersection of entertainment, marketing and design."

"The first time I saw the new Camaro, while touring the GM Design Center, I knew immediately that it would be the perfect 'Bumblebee,'" said Michael Bay, the film's Director. He continued, "It's got beautiful lines and a classic, timeless look. There were no other cars that came even close. I have had a great working relationship with GM for many years and am psyched to be working with them on Transformers."

Gerry Rich, President of Worldwide Marketing at Paramount Pictures, added, "We are thrilled to be working with GM on this incredible and action-packed film. Having integrated the cars as characters in the film is truly an innovative concept that will help eventize this exciting 4th of July tentpole film."

GM will roll out a fully integrated marketing and promotional effort around the film in the near future, including a major Chevrolet promotion, according to Jackson.

Images, scenes and clips - all things Transformers - may be found at the official Web site: www.transfomersmovie.com. Images of the four GM vehicles as they appear in Transformers are available online at media.gm.com.

About Transformers:

Our world will be transformed on July 4 when aliens make Earth their final battleground. As the forces of evil seek the key to ultimate power, our last chance for survival rests in the hands of young Sam Witwicky (Shia LaBeouf). DreamWorks Pictures and Paramount Pictures present, in association with Hasbro, a di Bonaventura Pictures Production, a Tom DeSanto and Don Murphy production of a Michael Bay Film, Transformers, starring Shia LaBeouf, Tyrese Gibson, Josh Duhamel, Anthony Anderson, Rachael Taylor, Megan Fox, with John Turturro and Jon Voight. Directed by Michael Bay from a story by Roberto Orci & Alex Kurtzman and John Rogers and a screenplay by Roberto Orci & Alex Kurtzman, the film is based on Hasbro's Transformers™ Action Figures. Producers are Don Murphy, Tom DeSanto, Lorenzo di Bonaventura and Ian Bryce and Executive Producers are Steven Spielberg, Michael Bay, Brian Goldner and Mark Vahradian. This film is not yet rated.