When it comes to Transformers, there's definitely more to meet the eyes.

Paramount and DreamWorks have ramped up development on a sequel to the summer blockbuster that will likely see Michael Bay back at the helm and Steven Spielberg again serving as executive producer, a DreamWorks rep confirmed Thursday.

"Obviously you have a movie that's made as much money as Transformers has, you'd want to do another one," spokesman Marvin Levy told E! Online.

The Viacom-owned studios have set a tentative release date for June 26, 2009, but as Levy was quick to caution, the timing depends on when all the principals are signed.

"Things are moving along, but until everyone says, 'Now we have everything; we have the script and everybody tied in,' we can't say it's greenlit yet," Levy added.

Combining the nostalgic appeal of the 1980s toy/'toon franchise with eye-popping special effects and the adrenaline rush of explosion impresario Bay, the robots-in-disguise flick blasted its way to $695 million worldwide since its July 3 release. A two-disc special-edition DVD set is due out Oct. 16.

While Bay has yet to officially be signed, he has signaled his interest in directing the sequel and a deal should be concluded fairly soon. Star Shia LaBeouf also figures to return for another go-round.

No word yet on the status of LaBeouf's costars, including Megan Fox, who played his character's love interest, Jon Voight as the Secretary of Defense and Josh Duhamel as one of the soldiers who helps the valiant Optimus Prime and the Autobots thwart the villainous Megatron and the Decepticons in their plot to wipe out humankind.

News of a Transformers follow-up could indicate that behind-the-scenes tensions at the studio may be slackening.

Last week, Viacom CEO Philippe Dauman indicated that DreamWorks bosses Spielberg and David Geffen were "completely immaterial" to Paramount and the studio would suffer no ill effect should they decide to exit when their contract expires in late 2008.

That ticked off DreamWorks' other principal, Jeffrey Katzenberg, who labeled Spielberg "nothing short of a national treasure" and deemed Dauman's remarks "ill advised."

The spat has led to speculation that the DreamWorks heads will indeed sever their relationship with Paramount and Viacom. Should they depart, however, Transformers and any other projects DreamWorks currently has on the drawing board would remain with Paramount.

For now, though, both DreamWorks and Paramount executives are hoping to fast-track development of Transformers 2 and start production before a potential strike by the actors guild next June.

It will be a close a call—given the complex effects work required and the need for an approved script, it's hard to imagine cameras rolling before next summer.

By that time, Paramount and Spielberg will be in full gear promoting the hugely anticipated Indiana Jones and the Kingdom of the Crystal Skull, which costars LaBeouf alongside franchise mainstay Harrison Ford.

Speaking of which, an extra named Tyler Nelson who was due to perform as a "dancing Russian soldier" in Crystal Skull and apparently doesn't give one iota about working in Hollywood again gave an interview to Oklahoma's Edmond Sun newspaper giving away key plot points of the movie.

We won't list them here, but the leak has the studio ticked. While refusing to confirm the accuracy of said spoilers, Levy did point out the blabbermouth actor violated a nondisclosure agreement signed by every Crystal Skull participant and could be held liable.

"People signed nondisclosures, and he disclosed some things that might be right and might not be right," said the rep. "Whether they are right or not right, doesn't really matter.

"The less that you know, even if none of the things he said were quite right, the better, because the most fun is when you know the least."

Nelson could not be reached for comment. But his agent at the Thomas Talent Agency told the New York Post, "He's in trouble. He's got to know that he can't do that."