In my trailer I used I movie as my software and I believe that was the best choice as I have prior knowledge with the software and have been using it for years. If you have never used I movie, a program like PowerPoint would be easier as it is basic and everybody has used it before. I was able to insert a song with lots of sound effects and speech without any issues greatly enhancing the outcome of my trailer. In I movie along with the speech songs and sound effects, I was able to add all the clips I needed with good transitions making my trailer flow with the music and change with the beat making it look more professional.