1. A method, comprising: obtaining a plurality of sets of face images associated with a video, wherein each set corresponds to a particular person depicted in the video; of the people associated with the plurality of sets of face images, selecting one or more of those people to include in a facial summary by: analyzing the plurality of sets of face images and/or the video; determining an importance value associated with a degree to which a person is prominent within the video for each of the people associated with the plurality of sets of face images, wherein determining the importance value is based at least in part on the analysis including (1) a number of face images in that set and (2) an average face size associated with the face images in that set; and selecting one or more people to include in the facial summary based at least in part on the importance values; for each of the selected one or more people, selecting a face image from a group of potential face images to use in the facial summary based at least in part on the image quality of the potential face images in the group; and using a processor to lay out the facial summary using the selected face images, including by sizing the selected face images in the laid-out facial summary based at least in part on the importance values.