If there's a way to do it like the film where you see the "romanticized" band in their own eyes, starting with Zanita staring at Tommy as his uniform changes into a fancy one, then hers, then the others, and suddenly you have what they picture the band to be like, rather than what they really are.
I love the ending to the movie, but if any of those boys actually played the instruments really well before their uniforms changed for the fantasy sequence (and they added several hundred members), it would defeat the point.
At the end of a stage production, if you're going to use a real (and good) marching band, they should be dressed differently and lit differently. A lot can be done with theatrical lighting to suggest to the audience that we're in "fantasy mode."
"Jaws is the Citizen Kane of movies."
blocked: logan2, Diamonds3, Hamilton22