Paul Giamatti and the 1st black President join The Hangover 2

By the first black President obviously I'm referring to Bill Clinton. The saxophone playing former leader of the free world has been seen on set at the Thailand shoot of Todd Phillips' The Hangover 2, in a scene that will see him playing himself, ofcourse.  No word on whether or not he will be having "sexual relations" with any Bangkok hookers as part of his cameo.  The Prez was in town giving a speech on clean energy.

Also joining the rapidly expanding cast is Paul Giamatti. The talented character actor, perhaps best known for his turn in 2004's Sideways, is signed on for an unspecified role at this point, but I'm guessing it'll be a cameo similar to that of Liam Neeson's.

What I'm worried about? That The Hangover is starting to become more about the guests than the story itself. I just hope they don't have to change too much in order to accomodate all these cameos.