The present invention relates to a system for showing an image, and more particularly, to a system for showing an image having a game function of performing an interactive game for viewers in a theater. To this end, the present invention provides a system for showing an image, including: a plurality of motion chair assemblies including a predetermined number of motion chairs; a center server configured to control the motion chair assembly; and a screen configured to display an image output from the center server, in which a signal generated in the motion chair assembly is transmitted to the center server according to an image displayed on the screen, and when the generated signal does not accord with a preset condition, the center server operates the motion chair assembly, and when the generated signal accords with the preset condition, the center server does not operate the motion chair assembly.