PRESENTATION OUTLINE
A movieclip is a symbol with a timeline, just like the main timeline.
The timeline of a movieclip can contain buttons, graphics, and/or other movieclips
If a movieclip in a movieclip has a timeline, this timeline plays independently of the timeline it's running in. Suppose a movieclip has a timeline with 20 frames, and a movieclip in this timeline has a timeline with 40 frames, and the last frame of this timeline shows a red dot.
The button is a straightforward symbol; all you can do with a button is click on it.
The timeline of a button symbol has only four states: 'up', 'over', 'down', and 'hit'.
For each state, a different look can be applied.
Graphic
A graphic can be used for static content, such as bitmap images or vector images.
Like the movieclip, a graphic has a timeline, so that animation is also an option.
Unlike the movieclip, the timeline of a graphic doesn't run independently of its possible predecessor(s).
