Sources: Michael Cera Joins Arrested Development Movie

Update Wednesday, 9:19 a.m.: Our own Michael Yo just broke this news to Portia De Rossi! Her response? "That's crazy that you just told me that. Thank you." (Such a polite cast!) So what was the holdup with Michael? Says Portia, "I don't know, I honestly don't. I spoke to Jason Bateman and Will Arnett; I think it was just a matter of timing. I don't know." Portia reports that she doesn't have a script yet, but she is on board even though all the contracts still need their T's crossed and I's dotted: "I just verbally said, 'Hey, I'll do it too.'" As for plot twists, Michael wanted to know: Would there be a Jason/Portia hookup in the movie? Says Portia, "Oh, we're not siblings anymore! That's weird. I don't know about that. That's creepy." She says creepy. What say you? Post in the comments!

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Oh happy day!

Inside sources close to the negotiations of the upcoming Arrested Development movie tell me that Superbad and Juno star (and before that, hello, George-Michael Bluth!) Michael Cera has finally agreed to do the feature film project.

Cera had been the lone holdout among the show's stars for several weeks. All other Bluths, including Jason Bateman, Portia de Rossi, Will Arnett, Tony Hale, Jessica Walter, Jeffrey Tambor and David Cross, are already game, according to sources.

So when exactly will the movie happen?

According to insiders, the movie may go as early as the end of the year, if they can put it together in time. I'm told Mitchell Hurwitz is writing and directing the script, and Fox Searchlight is the studio.

But don't you dare ask the cast or crew for inside info!

As Ron Howard told our own Ryan Seacrest at the Oscars on Sunday: "It's looking very much like we're going to make [the movie], but we've now been asked to stop offering any details. It's cloaked in a little mystery, but it's looking good."

Um, I'll say!

Anyone else thrilled to see all the Bluths headed for the big screen? I hear David Cross is so excited he just blue himself.