The best scenes have PEC: Purpose, Emotion + Conflict


Purpose

The following list of scene types are not all, but the most common kinds of scenes found in screenplays today. And often times, a scene may be a combination of two or more scene types.
1. Setting - Where are we?
2. Atmosphere/Mood - What is it like there?
3. Introduction - Who is it we are dealing with here?
4. Exposition - Necessary information. Quick and Clever.
5. Transition - getting from one place to another. Fast.
6. Preparation - What will it take to prepare for the task at hand?
7. Aftermath - How does the character feel about what just happened?
8. Investigation - Gathering information.
9. Revelation - The reader/audience finds out something important.
10. Recognition - The character finds out something important.
11. The Gift - Using a prop with emotional investment and turning it into a weapon, emotional or otherwise.
12. Escape - The character is trying to get away, avoid, or hide.
13. Pursuit - The character is trying to follow, capture, or secure.
14. Seduction - Someone must convince someone else.
15. Opposites - Two characters from seemingly opposite poles are forced together.
16. Reversal of Expectations - A character expects a certain, very clear outcome, but another character surprises him, influencing him to reverse his intention and do something else - practically the opposite of what he planned to do.
17. Unexpected Visitor - Someone unexpected shows up. Problems arise.

source: thescriptlab.com

Emotion

More specifically a change in emotion, for example trust to disgust or fear to anger.


File:Plutchik-wheel.svg
File:Plutchik-wheel.svg


Conflict

"There are three types of conflict: character vs. character, character vs. circumstances, and character vs. self." - Mark Mayerson

Or interpersonal, circumstantial, and intrapersonal.