Crucial moments within a screenplay that significantly affect the story’s direction and the characters journeys are what we refer to as plot points.
Typically, it is the first plot point that serves as a catalyst at the end of Act One pushing the hero deeper into the main conflict.
The midpoint plot point, which can be found somewhere around the mid-section of Act Two, introduces a major twist or revelation that heightens narrative tension by upping risks.
The second plot point is a necessary tool for any writer who wants to maintain smooth narrative in scriptwriting career. It happens at the end of Act Two and is considered as the most important turning point before climax.
We found a video on The Script Lab‘s YouTube channel where they explain about “The Five Plot Points”