A processing device provides, on a mobile device, a storyline content user interface (UI) for adding video content to a storyline, the storyline content UI having a first area including a media player, a second area including visual representations of video clips of one or more storylines, and a third area including a first UI element to record video content. In response to a user activation of the first UI element, the processing device initiates recording of a new video clip, determines that a duration of the new video clip has reached a predetermined threshold, creates a visual representation of the new video clip, associates the new video clip that reached the predetermined threshold with an additional storyline, and adds the visual representation of the new video clip to the second area. In response to a user selection of the visual representation of the new video clip in the second area of the storyline content UI, the processing device causes the new video clip to be associated with the storyline. In response to a user selection of the visual representation of the new video clip, the processing device plays, in a predetermined order on the mobile device, the new video clip and at least one of the video clips having the visual representations in the second area.