its weird that that was your explanation for my thoughts. i know it is in a movie and i have been trying to name it all day and i finally got it. its from mr. hollands opus. when they are doing the school play. it's one of the songs in the show. i think its "new york, new york," where they also sing i've got rhythm.
yes i remember that!! wasnt that movie like 19 million hours long?
i loved mr. holland's opus. i have that on tape, somewhere around here...