“National Lampoon’s Dirty Movie” represents a movie in a movie and tells the story about the abominable people behind the disgusting movie. At the center of the movie is a figure of a scandalous cut-price producer, Charlie LaRue, acted by a famous actor, Christopher Meloni, who cherishes a dream to make a film about the dirtiest and most offensive jokes ever known. During Charlie and his filmmaking crew’s hard work in attempt to write a scenario and their search for the award-winning actors, the film stems with scatology and obscene jokes one after another. Only one can succeed and create the dirtiest joke ever, and Charlie does everything to get the award.