CJ CGV is the largest multiplex cinema chain in South Korea and also has branches in China, Indonesia, Myanmar, Turkey, Vietnam, and the United States. The fifth largest multiplex theater company in the world, CJ CGV currently operates 3,412 screens at 455 locations in seven countries, including 1,111 screens at 149 locations in South Korea. CGV takes its name from the first letters of the joint venture partners at the time of launching; CJ, Golden Harvest, and Village Roadshow.

A multiplex is a movie theater complex with multiple screens or auditoriums within a single complex. They are usually housed in a specially designed building. Sometimes, an existing venue undergoes a renovation where the existing auditoriums are split into smaller ones, or more auditoriums are added in an extension or expansion of the building. The largest of these complexes can sit thousands of people and are sometimes referred to as a megaplex.