A method, comprising: at an electronic device with a display and a touch-sensitive surface: storing a plurality of sequences of images, wherein a respective sequence of images includes: a respective representative image taken by a camera, and one or more images acquired by the camera before acquiring the respective representative image; displaying a first representative image for a first sequence of images in a movable first area on the display; detecting a gesture on the touch-sensitive surface, the gesture including movement by a stylus and/or finger contact in a first direction on the display; in response to detecting the gesture on the touch-sensitive surface: moving the first area in the first direction on the display; moving a movable second area in the first direction on the display; in accordance with a determination that sequence-display criteria are met, while moving the second area in the first direction, displaying, in chronological order in the second area, at least some of the one or more images for a second sequence of images acquired by the camera before acquiring a second representative image for the second sequence of images; and, after moving the moveable second area in the first direction on the display, displaying the second representative image for the second sequence of images. storing a plurality of sequences of images, wherein a respective sequence of images includes: a respective representative image taken by a camera, and one or more images acquired by the camera before acquiring the respective representative image; a respective representative image taken by a camera, and one or more images acquired by the camera before acquiring the respective representative image; displaying a first representative image for a first sequence of images in a movable first area on the display; detecting a gesture on the touch-sensitive surface, the gesture including movement by a stylus and/or finger contact in a first direction on the display; in response to detecting the gesture on the touch-sensitive surface: moving the first area in the first direction on the display; moving a movable second area in the first direction on the display; in accordance with a determination that sequence-display criteria are met, while moving the second area in the first direction, displaying, in chronological order in the second area, at least some of the one or more images for a second sequence of images acquired by the camera before acquiring a second representative image for the second sequence of images; and, after moving the moveable second area in the first direction on the display, displaying the second representative image for the second sequence of images. moving the first area in the first direction on the display; moving a movable second area in the first direction on the display; in accordance with a determination that sequence-display criteria are met, while moving the second area in the first direction, displaying, in chronological order in the second area, at least some of the one or more images for a second sequence of images acquired by the camera before acquiring a second representative image for the second sequence of images; and, after moving the moveable second area in the first direction on the display, displaying the second representative image for the second sequence of images.