Follow-up to 2004's “Harold and Kumar Go to White Castle,” with the likable buddies (Kal Penn and John Cho) getting busted when someone on a plane mistakes Kumar's bong for a bomb. Their stint in prison lasts for about five extremely vulgar minutes, then they get chased a lot. Like the first movie, this mixes gross, obvious gags with enough clever stuff to keep you watching. Happily, Neil Patrick Harris pops up again as a bad-boy version of himself. 102 minutes. DVD INFO: Several editions are available. The two-disc unrated edition includes audio commentary, a featurette, 27 additional scenes and a fake PSA.