4DX is a 4D film format developed by CJ 4DPlex, a subsidiary of South Korean cinema chain CJ CGV. It allows films to be augmented with various practical effects, including motion seats, wind, strobe lights, simulated snow, and scents. First introduced commercially in 2009, it presents films in both Stereoscopic 3D and Monoscopic 2D formats.
CJ has licensed the technology worldwide. As of September 2019, CJ 4DPlex operates 678 4DX theaters in 65 countries through partnerships with more than 80 theaters, including Wanda Cinemas, Cineworld, Regal Cinemas, Cinépolis, Event Cinemas and Village Cinemas. The company recorded an annual growth rate of more than 50 percent from 2013 to 2018