An electronic device with a display and a touch-sensitive surface automatically crops a video content item in an editing mode of a video application; displays an automatically cropped area of the video content item on the display in the editing mode of the video application; and, while displaying the cropped area of the video content item on the display in the editing mode of the video application: detects a gesture on the touch-sensitive surface; and, in response to detecting the gesture on the touch-sensitive surface: overrides automatic cropping of the video content item by modifying the cropped area of the video content item in accordance with the gesture; and displays the modified cropped area of the video content item on the display.