Mr. Holland's Opus (1995)

Revealing mistake: Anytime the camera is on Richard Dreyfuss' hands while he's playing the piano, it is clear that he is not actually playing; his hands are frequently in the wrong part of the keyboard for the sound being produced. At other times, when his hands are moving down the keyboard, the pitch we hear is going up, or vice-versa.

Vice Principal Wolters: I care about these kids just as much as you do. And if I'm forced to choose between Mozart and reading and writing and long division, I choose long division.
Glenn Holland: Well, I guess you can cut the arts as much as you want, Gene. Sooner or later, these kids aren't going to have anything to read or write about.

Trivia: All the American Sign Language used in the movie is accurate. When Iris tells Cole to open the window, Cole's response is not translated and she says "don't bust my butt." What he signed was, "Tell him to open the window himself."

Question: Sometime during the film the show the passing of several years by showing images of what happened during these years. I think it is at the time of the Vietnam War. A song is played in the background. Does anybody know what the name of that song is and whom by?