What is a story?
A story is what the book, film or computer game is about. It has a beginning, middle and end. The beginning always addresses the issue at hand and it has to grab the audience. The middle of a story will have each event linked and it will keep the subject in tone with the film. When the end of the film arrives there is usually a resolution to the film. 

Closed Endings?
A closed ending in a film is when all the questions are answered and the audience go away knowing there end with closure. 

Open Endings?
In an open ended film there are still questions that need to be answered. Reasons of this could be that there is a sequel of the film to come afterwards. 

3 Act Narrative Structure:

The first act is usually used to establish the main characters, their relationships and they settings that they are in. Later in the first act something will occur to the main character. The character will attempt to deal with this incident which will lead to a dramatic situation. This raises dramatic questions that will be answered in the climax of the film. The second act typically refers to the attempt to resolve the problem. The characters develop and the viewer finds out more about them.The third act features the resolution of the story and its subplots. The climax is the scene or sequence in which the main tensions of the story are brought to their most intense point and the dramatic questions are answered.

5 Act Hollywood Structure: 

The Hollywood structure has 5 major parts. It has a 'Exposition, Development,Complication, Climax and Resolution to a story. The different parts are shown below:

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Linear and Non - Linear Narrative:

Linear narrative follows are straight line - it starts at the beginning, moves to the middle and then to the end of the story. In contrast, a non-linear narrative often can start at the middle of a story and then double back to the beginning. Also a non linear narrative can flash forward and back. This keeps the viewer alert as the story is being told.