The study below deals with one type of gratuitous content, but of course there are other types of stuff gratuitously used in films. Gratuitous use of special effects, alongside abandonment of a concept called "plot", is another thing that I find annoying about a lot of recent movies.
According to a new study published in the November journal of Psychology of Aesthetics, Creativity, and the Arts, sex does not sell mainstream cinema. Crunching data from 914 films released between 2001 and 2005, researchers Dean Keith Simonton from the University of California, Davis, and independent Vancouver-based researcher Anemone Cerridwen discovered sex and nudity have a negligible impact on the box office.
If anything, too much hard-core action could actually hurt a film's performance. On average, the less sex and nudity, the higher the gross. The more sex and nudity, the lower the gross — by approximately 31 per cent. "All in all, it appears that sex may neither sell nor impress. This null effect might suggest most cinematic sex is in fact gratuitous," write the authors.
- Excerpted from the Calgary Herald
Interesting to find an article like this in a secular source.