It looks like Larry David's comedy feature set up to debut on HBO finally has a name: Clear History.  More important than that oddly ambiguous title is the all-star cast that David and director Greg Mottola (Superbad) have lined up.  We previously reported that Jon Hamm (Mad Men) and Michael Keaton (Batman) were attached to star, but a slew of others have joined the production.  Clear History will also feature Kate Hudson, Bill Hader, Amy Ryan, Eva Mendes, JB Smoove, Danny McBride and Phillip Michael Hall.  Hit the jump for more on Clear History. Variety reports on the new title for the David/Mottola project as well as the cast additions.  The plot of Clear History concerns David and Hamm’s characters as investors in an electric car company.  Though both of them have different goals in mind, the outcome favors Hamm’s businessman who becomes obscenely rich and Nathan Flomm (David) to collapse into failure, obviously causing tension beween the two.The men are reunited, in a way, ten years later when Flomm is a ruin of a man and has taken on the persona of one Rolly DaVore.  When he sees that Hamm's character has shown up on the small island reserve for a vacation, he resolves to seek his revenge and drive him away.David co-wrote Clear History with Curb Your Enthusiasm writers and exec producers Alec Berg, David Mandel and Jeff Schaffer. Production is scheduled to start in Massachusetts this fall, but there has yet to be an announcement on a debut date.