It's Your First Kiss, Charlie Brown (1977)

Plot

During the school homecoming festivities, Charlie Brown finds himself escorting the red-haired girl he has long admired. As if that weren't enough pressure, he's also the placekicker for the football team, with Lucy holding the ball—an arrangement fraught with uncertainty. When the team faces defeat, Charlie is unfairly blamed, yet he unexpectedly becomes the center of attention at the dance. The celebration remains shrouded in mystery, leaving viewers to wonder whether Charlie truly experienced this moment of joy or if it existed only in his imagination.