Tons of great stuff in this Tad Friend New Yorker article about the marketing of movies. The codification of the marketing process revealed in the article provides a bit of insight about how we discover and experience this particular class of product.

The business began to change in 1973, when “Billy Jack,” about a rebellious ex-Green Beret, was reissued by its writer and star, Tom Laughlin, after a Warner Bros. release fizzled. Laughlin’s company, Taylor-Laughlin Distribution, saturated the airwaves with television spots aimed at twelve different demographics-“carefully calculated overkill,” as one Taylor-Laughlin executive put it.

and

“Jaws” opened “wide” in 1975, on four hundred and nine screens, at the time a large number; big studio films now open everywhere on more than four thousand. And if you’re in that many theatres you need huge audiences as soon as a film opens-so you need a movie that sells itself.

and

Marketing considerations shape not only the kind of films studios make but who’s in them-gone are lavish adult dramas with no stars, like the 1982 “Gandhi.” Such considerations account for a big role being written for Shia LaBeouf in the most recent “Indiana Jones” (to attract youthful viewers as well as Harrison Ford’s aging fans). They also account for the virtual absence from the screen of children between the ages of newborn (when they appear briefly, to puke on the star for the trailer) and that of the Macauley Culkin character in “Home Alone.” Why have a four-year-old character, when one who is ten will prompt ten-year-olds to find him “relatable,” and four-to-nine-year-olds to look up to him?

and

An unexpected corollary of the modern marketing-and-distribution model is that films no longer have time to find their audience; that audience has to be identified and solicited well in advance. Marketers segment the audience in a variety of ways, but the most common form of partition is the four quadrants: men under twenty-five; older men; women under twenty-five; older women. A studio rarely makes a film that it doesn’t expect will succeed with at least two quadrants, and a film’s budget is usually directly related to the number of quadrants it is anticipated to reach. The most expensive tent-pole movies, such as the “Pirates of the Caribbean” franchise, are aimed at all four quadrants.

The collective wisdom is that young males like explosions, blood, cars flying through the air, pratfalls, poop jokes, “you’re so gay” banter, and sex-but not romance. Young women like friendship, pop music, fashion, sarcasm, sensitive boys who think with their hearts, and romance-but not sex (though they like to hear the naughty girl telling her friends about it). They go to horror films as much as young men, but they hate gore; you lure them by having the ingénue take her time walking down the dark hall.

Older women like feel-good films and Nicholas Sparks-style weepies: they are the core audience for stories of doomed love and triumphs of the human spirit. They enjoy seeing an older woman having her pick of men; they hate seeing a child in danger. Particularly once they reach thirty, these women are the most “review-sensitive”: a chorus of critical praise for a movie aimed at older women can increase the opening weekend’s gross by five million dollars. In other words, older women are discriminating, which is why so few films are made for them.

Older men like darker films, classic genres such as Westerns and war movies, men protecting their homes, and men behaving like idiots. Older men are easy to please, particularly if a film stars Clint Eastwood and is about guys just like them, but they’re hard to motivate.

and finally

If the poster shows a poster child, the movie is for kids. Posters are intended to tell you the film’s genre at a glance, then make you look more closely. Horror posters, for instance, have dark backgrounds; comedies have white backgrounds with the title and copy line in red. Because stars are supposed to open the film, and because they have contractual approval of how they appear on the poster, the final image is often a so-called “big head” or “floating head” of the star.