1. A thumbnail generating apparatus comprising: a moving image extracting portion that, within a first certain period of a moving image, extracts each of images constituting the moving image every a second certain period shorter than the first certain period; a reduction and enlargement ratio calculating portion that integrates regions each where there is a face of person included in each of the extracted images, determines a face display region such that the face display region surrounds the integrated regions each where there is a face of person, and calculates a reduction and enlargement ratio of the moving image such that the determined face display region has substantially the same size as a certain display region previously set where a moving image thumbnail is to be displayed; and a moving image thumbnail generator that reduces or enlarges the moving image based on the calculated reduction and enlargement ratio to generate the moving image thumbnail.