A moving image generation system includes a CPU and memory storing programs which when executed by the CPU cause the CPU to perform: receiving a determination of whether a designated subject is present in each of a plurality of photographed frame images in moving images acquired by image capture devices that are disposed such that respective photographing areas thereof overlap; at certain timings, selectively clipping a subject-included image area from at least one of the photographed frame images, wherein the subject-included image area is a partial image area in which the subject is detected and included at a predetermined position and in a predetermined size in which all of the subject is provided and a predetermined margin can be provided around the subject; and coupling a plurality of selectively clipped image areas so as to generate a single moving image.