What is the fine-grained topic of the following text: Not only does most of the bands have a crazier life than Marvel's average superhero, but filmmakers can rely so heavily on the music that the movie itself is unlikely to be any better than the videos shown above the lyrics in karaoke bars , But that will definitely be a topic for the upcoming David Bowie biopic, because despite all the early influences, the soundtrack will not have its biggest musical impact: David Bowie. Only return the topic.
Challenges in making the David Bowie biopic without his music.