SPOILER ALERTS (obviously)
Your question is open to interp. But, In addition to those already mentioned (though I may repeat some of them) consider the following very memorable final curtains:
Fiddler on the Roof (a heartbreaking exit), South Pacific (incidental singing gives way to a heartbreaking entrance, a silent reunion, and a blissfully simple meeting of hands across a not so crowded table), My Fair Lady (a dry remark provides the controversial but so very persuasive change from the source material), Triumph of Love (a satisfying one-liner), Sunset Boulevard (a classic line from the classic movie), Promises, Promises (another classic line from another classic movie), Raisin (a classic exit from the classic play), Follies (exits of the principles give way to the best moment of the show as the four leitmotif lines are poignantly repeated by their ghosts, leaving us to wonder about what's next for their older selves), Company (blow out the candles, Bobby, and make a wish), 42nd Street (Julian alone on stage, a single ghost light casting his shadow on the wall, croons acapella the tonic line of the title tune), On The Twentieth Century (discovering that each has tricked the other, Lily and Oscar first scream at each other, then laugh, then lovingly fall into each other's arms), Carnival (Lili sees the puppet is trembling, lifts it off Paul's hand, Paul confesses his love for her, they follow the carnival).
Updated On: 5/31/13 at 10:44 AM