ullanta
Veteran
I'm simply displaying the trailer for my work, the cinematography. If the director and editor wish to use those shots, who am I to disagree.
Well, if you don't want your flick to be laughable, it'll help. Sad as it may bem a film tends to be judged on its overall merits; as we know, a film with crappy sound will seem to look worse; editing can change how one sees the cinematography; continuity problems can overwhelm good imagery... terrible acting will often overwhelm the impact of a well-shot film. So, I think a cinematographer has a stake in the final product. That's why we're so careful to choose who we work with. I'm not saying they'll listen to you... but it's good for you to care a bit more than you seem to...
Anyway, if you're being paid for this, you'll have a chance to pick up some more $$ doing a few insert shots.
Finally, when it comes to top-level work, indeed, a cinematographer can emphasize or de-emphasize the impact of the actors' skill (or lack thereof) in performing actions such as playing instruments. This is a skill that is certainly one that can make your work as a cinematographer stand out, and one that is in demand for certain projects.
Anyway, do what you want, care as you want! Just some friendly advice.