The Associated Press has written an article about Hollywood studios planning even more installments of their biggest franchises. Here are some interesting passages:

A fourth Shrek film is scheduled for 2010. Jeffrey Katzenberg, chief executive of DreamWorks Animation SKG Inc. (DWA), recently said a fifth will follow.

There are no current plans for another Pirates film, but Johnny Depp has indicated he's open to it. Sony Pictures and Marvel Studios have said with certainty that Spider-Man will be back, but writer-director Sam Raimi and stars Tobey Maguire and Kirsten Dunst have voiced reluctance to continue.

"I know there'll be a Spider-Man 4, 5 and 6," Raimi said earlier this year. "I just won't be the guy that'll probably write the story, because I've got to clear my head."

There have even been rumblings of a fourth Ocean's movie following this summer's Ocean's Thirteen. Opening Aug. 3 is The Bourne Ultimatum, and while it's based on Robert Ludlum's third and final "Bourne" novel, author Eric Van Lustbader recently picked up the series, writing two more "Bourne" books.

Transformers, which was based on the '80s toys and animated TV show, has grossed over $223 million in two weeks and seems destined for at least one sequel. Martin Levy, a marketing executive at Dreamworks (which co-produced the movie with Paramount), says: "It's a very logical thing to think that we can look forward to another one."

Feige says another X-Men film is possible and that spin-offs for Wolverine and Magneto are in the works. A third Fantastic Four following this summer's Fantastic Four: Rise of The Silver Surfer edition is also possible, and Feige says a Silver Surfer stand-alone script has been "moved to the forefront" of discussions.

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