Even a short story about a young girl who waits by the telephone to be invited to her first dance is not the kind of material movies do well. We may be satisfied in a short story to glimpse a slice of life, but in a movie we want the whole pie - and we'll be unsatisfied if we don't get it. A good movie has a beginning, a middle, and an end. It tells the narrative of change for a character in a dramatic sequence. Dramatic is the important word.
Movies are dramatic, and drama is about conflict.
All good movies are about a character acting against another character or his environment. The main character moves through the story only because he overcomes obstacles. The character may have to use physical force, as in an action-adventure movie, or emotional and verbal force as in a movie like Rain Man or Kramer vs. Kramer , but in either case the character always will have to take direct action in order to overcome the opposition. The opposition in a movie story comes not only from an antogonist, but from the main character himself. Before he can win, the main character must conquer some fear or shortcoming.