Jimmy Kimmel and his wife Molly have a baby on the way, but 28 weeks into the pregnancy, mortal enemy Matt Damon is trying to claim paternity. Despite how great it would be for that baby to be raised by an Oscar winner instead of an Emmy loser, Kimmel takes Damon on "Maury" to find out who is the real baby daddy.

The Unborn Supremacy

Whether or not Matt Damon is the father, Kimmel wants you to know that Damon's new movie "The Great Wall" is out, so please don't go see it.