What is a film trailer and what is its purpose?

What is a film trailer and what is its purpose?By Yusuf Kassim

Audience Feedback I (IT WORKS)

Audience Feedback II (IT WORKS)

Audience Feedback III

Audience Feedback IV

Audience Feedback V

Audience Feedback VI

Sowhat makes a film trailer based on the audience feedback?After reviewing my findings that Ive made, as portrayed from the samples I looked at, I have come to a conclusion that a film trailer is a commercial that is either used for the purpose of enticing a particular audience and persuading them to come and watch the film by adding the best bits of the film, or alternatively, it reveals certain parts of the narrative, but not the entire storyline of the film, in other words, the trailer needs to remain enigmatic, albeit a form of marketing that gives the audiences an insight into what the film is all about. However, if I were to input something else in this, it should introduce main cast, and focus around the more well-known/A-listed actors/actresses, such as Samuel L. Jackson, Brad Pitt, Renee Zellweger, etc. I will look more into this in my next task.