What are the differences between techniques used in written plays and in movies? I want only the techniques in general not related to any specific...

In a written
play some of the techniques are clarifying the beginning, middle and end. Then the playwright
must construct an arc of action--the action that moves the characters from the beginning to the
end of the play.  In addition, the writer must create character arcs, which means each character
must change from the beginning to the end of the play. These arcs I speak of, refer to how the
action develops. For example, a character wants or desires something then there are roadblocks
in the way that prevent him or her from getting what they...