Superman Movie Zack Snyder

Christopher Nolan will not direct the reboot Superman movie, he asked Zack Snyder to step in as Director. And Zack Snyder has officially accepted to direct Superman man of Steel:

"I've been a big fan of the character for a long time, he's definitely the king of all superheroes, he's the one. It's early yet, but I can tell you that what David and Christopher Nolan have done with the story so far definitely has given me a great insight into a way to make him feel modern. I've always felt he was kind of awesome. I'll finish Sucker Punch and get right at it."

Director Zack Snyder

Zack Snyder also added that Brandon Routh is unlikely to play Superman again. And it sounds like the villain will actually be Zod...
:)