Both in the early days and during the revival, that mixture usually included "girlie" reels which ran the gamut from risqué to outright soft-core pornography. It was, however, common for these reels to have suggestive titles that implied more than the reel actually delivered. The title of one such reel, What the Butler Saw, became a by-word, and Mutoscopes are commonly known in the UK as "What-the-Butler-Saw machines."