According to the plot of the film, the 4D movie has carefully designed the effects of smoke, rain, photoelectricity, bubbles, smells, scenery and character performances, forming a unique performance form, which is the very popular 4D cinema today. According to Minkowski's theory, 4D adds the concept of time to 3D. So the combination of time and space becomes the so-called 4D spacetime. In physics and mathematics, a sequence of n numbers can be understood as a position in an n-dimensional space. When n=4, the set of all these positions is called four-dimensional space. This kind of space is different from the three-dimensional space we are familiar with and live in because it has an extra dimension. This extra dimension can be understood as time, or directly as the fourth dimension of space-time, that is, four-dimensional space-time.

4P combination, i.e. product, price and location.

4C marketing theory, that is, consumers' wants and needs, costs, convenience and communication.

4R marketing mix, that is, establishing relationship with customers, improving market response, using relationship marketing, and rewards are the source of marketing.

4V refers to variation, multifunction, added value and resonance.

"4P" is the floorboard of four elements of production-centered marketing represented by product, price, place and promotion. Throughout the 1980s and 1990s, enterprises used "4P" strategy in marketing, and later added "power and public relations" to the "4P" marketing concept, forming a 6P marketing strategy combination. In recent years, marketing scholars put forward a new marketing concept and theory from the customer's point of view, that is, "4C" combination theory, including customer (customer's needs and expectations), cost (customer's expenses), convenience (customer's purchase convenience) and communication (customer's communication with enterprises).