RPX stands for Regal Premium Experience, which is a type of movie theater experience offered by Regal Cinemas. RPX theaters show movies with powerful, uncompressed surround sound and bright, eye-popping images in 2D and RealD 3D. The theaters also offer custom-built premium environments, including stadium seating and leatherback seats, most of which are recliners, with extra padding to offer extra comfort. Each seat has a speaker placed underneath it to offer a better sound system to the viewers. RPX theaters are designed to provide an immersive experience with laser projectors and immersive sound effects.

RPX is a self-labeled PLF (Premium Large Format) that has a single brighter projector (Barco) and depends on which version you got either Atmos or Auro audio. RPX is generally more expensive than a standard movie ticket, but the premium feel and immersive experience make it worth the extra cost for some viewers. RPX theaters are not as advanced as Dolby Cinema, but they offer a similar experience at a lower price point.

In summary, RPX is a premium movie theater experience offered by Regal Cinemas that provides an immersive experience with powerful sound and bright, eye-popping images. RPX theaters offer custom-built premium environments, including stadium seating and leatherback seats, most of which are recliners, with extra padding to offer extra comfort. RPX is generally more expensive than a standard movie ticket, but the premium feel and immersive experience make it worth the extra cost for some viewers.