Jason Clarke has closed on one of the remaining key roles in Baz Luhrmann‘s The Great Gatsby, signing on to play George Wilson, a cuckold husband with several big scenes. Clarke has a whole or two in his schedule since the cancellation of his police drama “The Chicago Code.”

Notable TV actor (not a slam, I promise) Josh Stewart has signed on for an undisclosed role in The Dark Knight Rises. My sources tell me that it’s unlikely he will play the role of Bruce Wayne/Batman, but we will of course let you know as soon as possible should that be the case.

Ellie Kemper continues to parlay both”The Office” and Bridesmaids into more high-profile work, scoring a role in the currently-filming-in-New Orleans 21 Jump Street. She will play a sweet chemistry teacher who is also fooled by the identities of several of her students. Let’s all hope the sweet girl gets a happy ending and isn’t used as a human shield in a hostage situation or something.

Billie Joe Armstrong, lead singer and guitarist of Green Day, will be appearing in his band’s American Idiot film adaptation, playing the role of drug dealer St. Jimmy. He played the same role on Broadway last fall, then again when it closed, so this is old hat to him. His sneer will look even more punk in Imax.

Green Day may drop dookies into theaters nationwide, if this deal goes through. The show’s Broadway director, Michael Mayer, would direct the film version. Dustin Lance Black (Milk) would adapt the musical script for the screen. Punks were once considered counter-culture rebels, right? I can’t think of anything more mainstream than a hit Broadway show turned into a big budget movie. I guess if “Glee” does a cover of “Boulevard of Broken Dreams,” that’d be that.

Armstrong might play a drug dealer in the American Idiot movie, a character he sometimes plays on stage. Hmm… looking at him, I just don’t see it. (Deadline)