Classification according to a grade.
ranking
A particular moment in a film.
scene
A new version of a film.
remake
The music used for a film.
soundtrack
A very popular film.
blockbuster
Actors and actresses who take part in a film.
cast
Where and when the story takes place.
setting
The less important character in a film.
minor character
Something that tells people what will happen in the story before they want to know.
spoiler
The central person that the film is about.
main character