I dig watching a good film trailer and a nice twist on the idea is when its used for music.
It especially works for bands that make concept albums, which is an album centralized around a certain theme, the most famous perhaps being Sgt. Peppers Lonely Hearts Club Band. McCartney thought at the time instead of the band going on a tour performing songs off the album, why not let the album go on a tour itself!
A film like trailer makes you feel like your about to enter this exciting musical journey. Julian Casablancas solo album, Phrazes for the Young, has this incredible 80’s vintage feel with the synthesizers.
Fans love the anticipation, cos that is the best part! I wonder what direction they`re going this time? Show the behind the scenes footage, what others don’t usually get to see. This of course helps if your business is somewhat interesting to begin with.