Matt Damon and John Krasinski’s Big Career Move! Matt Damon is following in the footsteps of best pal Ben Affleck by not only directing his first film, but also starring in it. Harkening back to his days on Good Will Hunting, Matt has also worked it with a fellow Bostonian, John Krasinski. Warner Brothers, the film’s production company, has confirmed a few details on the yet-to-be titled drama.