Let's start with the big main trailers.
The main trailers usually contain the biggest amount of impressions and information about the upcoming movie compressed into 2 to 4 minutes (average 2 minutes and 30 seconds).
The structure might slightly vary from trailer to trailer. However, this course is based on my study of several hundred trailers and tv spots. I will add the estimated average duration each of your acts should be based on.
The different common acts are:
All of these will make up the entire structure of a typical main trailer. There are many variations of this, but this is a great structure to start with when creating a track.
Let's have a closer look at each of them, and the music that's used!