When a self-centered young talented musician lusting for the lifestyle of a rockstar, scores him and his band of brothers a chance to be signed and mentored by one of the music industry’s big time acts, he must wrestle with the rewards and pitfalls of stardom in the music industry as an artist and become a better man to those around him.

What you have here is a synopsis. Let’s get it short and snappy. For example, it takes 5 words to describe our protagonist. Can you get that down to 2-3? Maybe “A selfish drummer” or “young drummer” and mention his ego later.

A young rocker destined for stardom battles his ego when a legend won’t sign him without a full band.

My example is short and not unique/compelling yet but maybe build from it?