One of the movies the South Park guys made used this technique to get an R rating out of some gratuitously NC 17 movie. They included some over the top 20 minut

One of the movies the South Park guys made used this technique to get an R rating out of some gratuitously NC 17 movie. They included some over the top 20 minute graphic sex scene and they cut and cut and cut until there was nothing left but a short gross sex scene and the "regular" movie. See also the duck from battle chess.