This document provides an overview of IMAX, a large format film and projection standard. It discusses the history and development of IMAX, which was created in Canada in the 1960s. The technical aspects section describes IMAX cameras, film, soundtracks, and projectors. It details how IMAX uses larger film and higher resolution to provide bigger, more immersive images than conventional film formats. The document also covers IMAX variations like dome screens and 3D, as well as IMAX's growing use in feature films and worldwide expansion.