Rejoice! Harold and Kumar 3 officially started filming today in Michigan. John Cho reported via his twitter that Patton Oswald has joined the cast. Screenwriter Jon Hurwitz announced several months ago that the movie would be called A Very Harold and Kumar Christmas!, we'll see if this sticks or if it's just Harold and Kumar 3 now. Neil Patrick Harris is returning to reprise his role as Neil Patrick Harris. Kal Penn of course got out of his White House duties to come back to where he belongs, probably a smart move too!