Buzz·Posted on Jul 30, 2012Larry David Mystery Movie Coming To HBOAlthough not much is known about it yet, here's what we do know so far. (via avclub.com).by Keenan RobertsBuzzFeed StaffLinkFacebookPinterestTwitterMail Larry David will be in it. So will Jon Hamm and Michael Keaton. It's the first movie he's written since: Greg Mottola is directing it. He also directed this: And it will be heavily improvised, much like this: