Cine Rex, Art Deco movie theater in Praça Pedro II, Teresina, Brazil.

Cine Rex is an Art Deco cinema on Praça Pedro II that spans two floors with a main screening room seating about 800 spectators. An upper gallery provides an additional 450 seats, creating a tiered viewing layout throughout the structure.

Built in the 1930s in Art Deco style, Cine Rex opened with a screening of The Great Waltz, becoming the city's first projection hall. It passed through several owners and underwent a major renovation in 1973, a prosperous period. In 1995, at the owner's request, the building began its heritage listing by Fundac. In 2005, an attempt to revitalize it as a nightclub failed after a few years, and it now stands abandoned.

The building displays Art Deco features with geometric forms, clean lines, and bold proportions highlighted by blue stained glass windows and Italian marble inside. This design reflects the aesthetic preferences of the 1930s and continues to shape the character of the square today.

The building stands next to Teatro Quatro de Setembro in downtown Teresina and is easy to reach on foot. The site is currently not accessible to visitors, as the structure has remained unused for several years.

The building's 1995 heritage listing by Fundac was requested by its own owner, who cited the cinema's artistic value and its importance to the city's historical and landscape heritage. The process began while the cinema was still operating, a decade before the 2005 attempt to convert it into a nightclub.