CJ CGV

4DX (Four-Dimensional eXperience) is a 4D film presentation system developed by CJ 4DPlex, a subsidiary of South Korean theater chain CJ CGV. It allows films to be augmented with various practical effects, including motion-seats, wind, strobelights, snow, water, and scents. First used in 2009, it presents films in both stereoscopic 3D and monoscopic 2D formats.

South Korean multiplex theater company