Apparently Jeffrey Tambor's comments at the Hellboy 2 premiere were premature. According to Jason Bateman, not only is there not a deal, but there's not a script.
Oh and "They are trying to decide if they can make it for the money they need," quips star Jason Bateman. "Michael Cera is a huge star now...with a huge star attitude to go with it. His salary will probably be the holdup." (from EW.com)