Ain't It Cool News has confirmed that 20th Century Fox has chosen a director for X-Men 3...

Matthew Vaughn, director of Layer Cake, will direct X-Men 3 for Fox.
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I’ve gotten word now from two different sources regarding this coming Tuesday morning’s announcement of the new director of X-MEN 3. It’s happening. The film’s a go. Expect them to try to beat SUPERMAN to theaters, too. It sounds like Zak Penn’s script is the one that Fox is using, and this director should be able to mine layers and layers of subtext out of the material.

I'd love to talk to him or to Zak Penn about general plans for the franchise as soon as possible, but I'm sure they're going to be tight-lipped. I'm incredibly happy overall with the way this is coming together. Matthew's a smart filmmaker, and his work on LAYER CAKE is dynamite. Zak Penn gets the X-Men and loves the characters, and he's been pretty instrumental in the franchise as a whole, so I think we're in good hands as the Dark Phoenix saga gets underway.

In addition, recently tried to get word on whether or not Halle Berry would be returning to the franchise with co-stars Hugh Jackman, Famke Janssen, Patrick Stewart, Ian McKellen and Alan Cumming who have contracts to return. Here's what Berry was quoted as saying...

I know how you are about your X-Men! I have not read the script. All I have asked, is that if I come back as Storm, she need to be closer to the comic book. So, if they have in fact written her closer to the comic book character, then I'm in. If not, I'm out. I hope I'm in though. I love Storm, and really want to be part of the last film.
Brian B. at Movieweb
Brian B.