Pixar, Disney Agreement Yet To Surface; Negotiations Still Under Way; Success of its five movies might give animation firm Lucas, DreamWorks clout.(INTERNET & TECHNOLOGY)

Byline: PATRICK SEITZ

When it comes to fish tales, Pixar Animation Studios told a whopper with "Finding Nemo." The computer-generated, 3-D animated film was the top-grossing movie of the summer, taking in $334 million at the U.S. box office alone.

But Pixar's distributor partner, Walt Disney Co., could be talking about the one that got away if it doesn't reach a new deal with Pixar soon.

Pixar investors lately have been betting on a new deal being reached between the two studios, judging by trading action in the stock, analysts say. For the most part, Pixar shares have risen before a new movie opens and then fallen after its release. But with "Finding Nemo," shares have risen about 25% since the movie opened May 30.

Pixar officials expect to have a new pact inked with …