CHRISTIE is not the only brand of projector theaters are using. Other brands are SIMPLEX, CINEMECCANICA, CINETECH, CENTURY, NORELCO, BALLANTYNE, DEVRY, ERNEMANN, GUAMONE-KALEE, SPECTRA, BRENKERT, and BAUER. There are more but I cant recall the names. The CHRISTIE is the most user friendly in my experience and in my opinion. However I cant say the CHRISTIE is the best one. I hear the CINETECH is the best one currently.

If you think the christie projector is big, get a load of this one. This projector pictured is a mix and match between 2 different brands ( SIMPLEX and STRONG ).