TAKEN 3 Official Trailer (2015) - Liam Neeson Movie HD

Sound is very important within a thriller/ action trailer as it helps set the tone mood and atmosphere letting the audience know what kind of thriller it is as you can get a number of different thrillers. for example Taken is a action thriller so it keeps the audience on the edge of their seats as they are excited to see what happens next. a movie like the purge is a kind of movie that will keep viewers on the edge of their seats as they are feeling nervous for the  characters.
Non-diegetic music is used to reflect the narrative events such as the music in the trailer, they use high pitched tones to start off and as it goes pear shaped we hear drops in the music and it gets lower and louder.
Diegetic sound is used in the dialogue or actual sounds that can be heard between the characters in the trailer, an example of this in this trailer would the dialogue between characters and the explosions/gun
fire

A close up shot is used to show what exactly what the character is doing in detail, such as liam Neesons character arming a bomb which is a genre indicator of an action film.
The establishing shot shows a vast city scape, and has buildings that match new york city, they use this as it may relate to viewers watching in america and people around the world look up to new york city as it is global super city. medium shots are mainly used in this trailer to show the action going on and the characters in the film - The main characters are introduced in the opening scene to the trailer when it locates in a house, the audience recognizes that they are the main characters through the use of different things such as dialogue/camera shots/ events they are involved in and the amount of screen time they get.

Enigma codes are used to tease the audience and engage them in the narrative so they carry on watching the film. certain enigmas are included in the trailer such as puzzles on how or who killed Liam Neesons wife in the film and how does he escape or find the killer, certain questions are left unanswered in the trailer like why did the police go after him and who killed the wife? The audience want to know what will happen to the character.

In the trailer the audience would identify symbols such as blood, weapons and police these could make the audience feel excited to see the outcome of the film and what happens next.