Acrobats (1979)

Two acrobats go valiantly through the complexities of their routine, smiling toothily, bowing on cue, and, all the while, conducting a sotto voce but lacerating marital spat. He threatens to drop her, she vows to leave him-but then the lights come up, the final bows are taken, and, subtly but surely, we are aware that their mutual dependency is still stronger than the tensions that have been so wittily and amusingly exposed.