Displaying character arc

Hollywood likes it's protagonists to experience character arc.
For example:
1. The Scriptshark grid says, "The protagonist clearly changes / has an arc."
2. On wordplayer.com, Terry Rossio's Readers Tip #58. Characters must change. What is the character's arc?

One way to show this is to confront the protagonist with a situation twice, once early in the story and again later in the story. The first confrontation shows the protagonist's reaction before the change, the second after the change. The difference between the reactions reveals the arc.

For example, in "The Family Man," Jack confronts his sexy girlfriend in the opening scene and then later at the opening of act 3. In the opening scene, he is content enjoying her as a sex object. Later in act 3, having glimpsed the joys of family life, the same situation leaves him unsatisfied.

Other examples are:
- Red in The Shawshank Redemption, who's arc is revealed by the parole hearings.
- Eddie in The Hustler. In the early battle with Minn. Fats, Eddie is intimidated. In the later battle, Eddie blows off Fats saying, "I'm shooting pool, Fats. When I miss, you can shoot."
- Schindler's List. Schindler's first and last scenes are in a shabby room. In the first scene, he's a con man trying to get rich. In the last scene, he's about to have dinner with a family he saved.

Note that the second scene can come in different places for different effect. For example, in The Family Man, it comes at the second plot point, whereas in Schindler's List, it comes at the denoument.