By the late 1950s, professional wrestling had lost its high ratings, and producers, realizing that they had overexposed it, soon dropped most wrestling shows from their lineups.
For example, the long exposures required at the time to create an image would properly expose the main subject, such as a building, but would completely overexpose the sky.
One downside to this method was that since the film was exposed twice, there was always the risk of accidentally overexposing the film and ruining the footage filmed earlier.