4- How can a film opening attract the audience?

A film opening is the first 2 minutes of the film and in that 2 minutes they sometimes they give clues of what could be happening in the film and also what type of genre the film is.
Things like the music, main characters or the moving images which draws the audience to watch the film opening and find out what id happening, also things like the sound is very important in a film opening because without sound we don't understand the genre of the film or what is actually happening.
Thriller and horror movies have the best types of film openings because they don''t give out clues and it lets the audience draw in slowly into the film to get an understanding and keeps on dragging towards the end.